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☂️ React Native Compatibility Tracker 2.0 #12

Description

@leotm

Priority matrix

  • SES: module / lockdown shim
  • JS engine: JSC* / V8 (debug) / Hermes / more
  • JS transformer: Babel / SWC, react-codemod
  • JS features: BigInt / Promises / etc, libs
  • RN version: <=0.66.x / 0.66.5* metamask-mobile / 0.69.x* / 0.70.x / 0.71.xmetamask-mobile / 0.72.x / 0.73.x
    • min: platform :ios, '11.0'0.69+: 12.4
  • RN bundler: Metro / Re.Pack / rn-esbuild, bundling / sourcemaps
  • RN platform: Android / iOS / rn-web / rn-macos / rn-windows
  • RN variant* mode: debug / release
  • RN arch: old / new**
  • SES integration: entry file / RN core

* undergoing retirement
** 3rd party libs not yet mature, but issues prioritised

Tracker

metamask-mobile

  • LogBox.ignoreLogs([...])
  • deps (Sentry, eth...)
  • e2e (Detox/(Appium))
    • 4.3. Enabling unencrypted traffic for Detox

      For Detox to work, its native code running on Android device has to be able to connect to the Node.js host running tests. It sends an unencrypted HTTP traffic via virtual localhost interface, that's why you need to create a new file which adds a couple of exceptions to the security rules.
      If properly configured, this approach in no way compromises the security settings of your app. For more details, refer to Android’s security-config guide and the dedicated article in the Android developers blog.

Notes

RN 0.66.5 types (globals.d.ts) (js global objects)

android-jsc (fbarchive) (debug-mode, release-mode)
"jsc-android": "^250231.0.0" (WebKitGTK 2.26.1) pre-RN 0.72
jscFlavor = 'org.webkit:android-jsc:+' (or jscFlavor = 'org.webkit:android-jsc-intl:+')
pre-release: v294992.0.0 (WebKitGTK 2.36.3) (only jscFlavor = 'org.webkit:android-jsc-intl:+')
Moved out of package.json in 0.72-stable| RN Monorepo | Migrate to package

v8-android (debug-mode: Remote JS Debugging, opt-in: release-mode)
v11.110.1 (jit/aot, intl/nointl)

Simplified model of moving parts (todo: interactive diagram)

javascript-environment: RN JS engines (3), transforms (~37), polyfills (11)

JavaScriptCore does not use JIT due to the absence of writable executable memory in iOS apps

When using Chrome debugging, all JavaScript code runs within Chrome itself, communicating with native code via WebSockets. Chrome uses V8 as its JavaScript engine

RN JS features per engine/platform table (excluding with)

metro-react-native-babel-preset v0.76.0
react/metro@e5950ae: [Breaking]: Increase minimum Node version from 14 to 16
package.json: 36 plugins
main.js: 23 extraPlugins.push
babel > packages

tc39: terminology glossary

Node (debug via cli-doctor)

Screenshot 2023-03-20 at 11 46 50

Screenshot 2023-03-20 at 11 46 56

https://drive.google.com/file/d/1mgKxKlpgjm2_KX4TP-G7hUti-JKjR2Xv/view

https://tmikov.blogspot.com/2023/09/how-to-speed-up-micro-benchmark-300x.html

https://www.youtube.com/watch?v=q-xKYA0EO-c

Join the convo 🌍

Metadata

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No one assigned

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    No projects

      Milestone

      No milestone

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      No branches or pull requests

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      , 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all
       blocks
      (function() {
      function addCopyButtons() {
      document.querySelectorAll('pre code').forEach(function(codeBlock) {
      if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
      codeBlock.parentElement.setAttribute('data-copy-added', 'true');
      var btn = document.createElement('button');
      btn.textContent = 'Copy';
      btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
      btn.onmouseover = function() { this.style.opacity = '1'; };
      btn.onmouseout = function() { this.style.opacity = '0.7'; };
      btn.onclick = function() {
      navigator.clipboard.writeText(codeBlock.textContent).then(function() {
      btn.textContent = 'Copied!';
      setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
      });
      };
      codeBlock.parentElement.style.position = 'relative';
      codeBlock.parentElement.appendChild(btn);
      });
      }
      addCopyButtons();
      // Re-run on dynamic content
      var observer = new MutationObserver(addCopyButtons);
      observer.observe(document.body, { childList: true, subtree: true });
      })();
      }
      } catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
      })();
      (function(){
      try {
      var __m = "github.com";
      var __re = new RegExp('^' + "github\\.com" + '
      ☂️ React Native Compatibility Tracker 2.0 · Issue #12 · LavaMoat/docs · GitHub
      Skip to content

      ☂️ React Native Compatibility Tracker 2.0 #12

      Description

      @leotm

      Priority matrix

      • SES: module / lockdown shim
      • JS engine: JSC* / V8 (debug) / Hermes / more
      • JS transformer: Babel / SWC, react-codemod
      • JS features: BigInt / Promises / etc, libs
      • RN version: <=0.66.x / 0.66.5* metamask-mobile / 0.69.x* / 0.70.x / 0.71.xmetamask-mobile / 0.72.x / 0.73.x
        • min: platform :ios, '11.0'0.69+: 12.4
      • RN bundler: Metro / Re.Pack / rn-esbuild, bundling / sourcemaps
      • RN platform: Android / iOS / rn-web / rn-macos / rn-windows
      • RN variant* mode: debug / release
      • RN arch: old / new**
      • SES integration: entry file / RN core

      * undergoing retirement
      ** 3rd party libs not yet mature, but issues prioritised

      Tracker

      metamask-mobile

      • LogBox.ignoreLogs([...])
      • deps (Sentry, eth...)
      • e2e (Detox/(Appium))
        • 4.3. Enabling unencrypted traffic for Detox

          For Detox to work, its native code running on Android device has to be able to connect to the Node.js host running tests. It sends an unencrypted HTTP traffic via virtual localhost interface, that's why you need to create a new file which adds a couple of exceptions to the security rules.
          If properly configured, this approach in no way compromises the security settings of your app. For more details, refer to Android’s security-config guide and the dedicated article in the Android developers blog.

      Notes

      RN 0.66.5 types (globals.d.ts) (js global objects)

      android-jsc (fbarchive) (debug-mode, release-mode)
      "jsc-android": "^250231.0.0" (WebKitGTK 2.26.1) pre-RN 0.72
      jscFlavor = 'org.webkit:android-jsc:+' (or jscFlavor = 'org.webkit:android-jsc-intl:+')
      pre-release: v294992.0.0 (WebKitGTK 2.36.3) (only jscFlavor = 'org.webkit:android-jsc-intl:+')
      Moved out of package.json in 0.72-stable| RN Monorepo | Migrate to package

      v8-android (debug-mode: Remote JS Debugging, opt-in: release-mode)
      v11.110.1 (jit/aot, intl/nointl)

      Simplified model of moving parts (todo: interactive diagram)

      javascript-environment: RN JS engines (3), transforms (~37), polyfills (11)

      JavaScriptCore does not use JIT due to the absence of writable executable memory in iOS apps

      When using Chrome debugging, all JavaScript code runs within Chrome itself, communicating with native code via WebSockets. Chrome uses V8 as its JavaScript engine

      RN JS features per engine/platform table (excluding with)

      metro-react-native-babel-preset v0.76.0
      react/metro@e5950ae: [Breaking]: Increase minimum Node version from 14 to 16
      package.json: 36 plugins
      main.js: 23 extraPlugins.push
      babel > packages

      tc39: terminology glossary

      Node (debug via cli-doctor)

      Screenshot 2023-03-20 at 11 46 50

      Screenshot 2023-03-20 at 11 46 56

      https://drive.google.com/file/d/1mgKxKlpgjm2_KX4TP-G7hUti-JKjR2Xv/view

      https://tmikov.blogspot.com/2023/09/how-to-speed-up-micro-benchmark-300x.html

      https://www.youtube.com/watch?v=q-xKYA0EO-c

      Join the convo 🌍

      Metadata

      Metadata

      Assignees

      No one assigned

        Labels

        Type

        No type

        Projects

        No projects

          Milestone

          No milestone

          Relationships

          None yet

          Development

          No branches or pull requests

          Issue actions

          , 'i'); if (__m === '*' || __re.test(location.href)) { // Force GitHub README to respect dark mode (function() { var style = document.createElement('style'); style.textContent = ' .markdown-body { color-scheme: dark light; } .markdown-body pre { background: #161b22 !important; } .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; } .markdown-body table th, .markdown-body table td { border-color: #30363d !important; } .markdown-body img { background: #0d1117; } .markdown-body blockquote { border-left-color: #8b949e; } .markdown-body hr { border-color: #30363d; } '; document.head.appendChild(style); })(); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' ☂️ React Native Compatibility Tracker 2.0 · Issue #12 · LavaMoat/docs · GitHub
          Skip to content

          ☂️ React Native Compatibility Tracker 2.0 #12

          Description

          @leotm

          Priority matrix

          • SES: module / lockdown shim
          • JS engine: JSC* / V8 (debug) / Hermes / more
          • JS transformer: Babel / SWC, react-codemod
          • JS features: BigInt / Promises / etc, libs
          • RN version: <=0.66.x / 0.66.5* metamask-mobile / 0.69.x* / 0.70.x / 0.71.xmetamask-mobile / 0.72.x / 0.73.x
            • min: platform :ios, '11.0'0.69+: 12.4
          • RN bundler: Metro / Re.Pack / rn-esbuild, bundling / sourcemaps
          • RN platform: Android / iOS / rn-web / rn-macos / rn-windows
          • RN variant* mode: debug / release
          • RN arch: old / new**
          • SES integration: entry file / RN core

          * undergoing retirement
          ** 3rd party libs not yet mature, but issues prioritised

          Tracker

          metamask-mobile

          • LogBox.ignoreLogs([...])
          • deps (Sentry, eth...)
          • e2e (Detox/(Appium))
            • 4.3. Enabling unencrypted traffic for Detox

              For Detox to work, its native code running on Android device has to be able to connect to the Node.js host running tests. It sends an unencrypted HTTP traffic via virtual localhost interface, that's why you need to create a new file which adds a couple of exceptions to the security rules.
              If properly configured, this approach in no way compromises the security settings of your app. For more details, refer to Android’s security-config guide and the dedicated article in the Android developers blog.

          Notes

          RN 0.66.5 types (globals.d.ts) (js global objects)

          android-jsc (fbarchive) (debug-mode, release-mode)
          "jsc-android": "^250231.0.0" (WebKitGTK 2.26.1) pre-RN 0.72
          jscFlavor = 'org.webkit:android-jsc:+' (or jscFlavor = 'org.webkit:android-jsc-intl:+')
          pre-release: v294992.0.0 (WebKitGTK 2.36.3) (only jscFlavor = 'org.webkit:android-jsc-intl:+')
          Moved out of package.json in 0.72-stable| RN Monorepo | Migrate to package

          v8-android (debug-mode: Remote JS Debugging, opt-in: release-mode)
          v11.110.1 (jit/aot, intl/nointl)

          Simplified model of moving parts (todo: interactive diagram)

          javascript-environment: RN JS engines (3), transforms (~37), polyfills (11)

          JavaScriptCore does not use JIT due to the absence of writable executable memory in iOS apps

          When using Chrome debugging, all JavaScript code runs within Chrome itself, communicating with native code via WebSockets. Chrome uses V8 as its JavaScript engine

          RN JS features per engine/platform table (excluding with)

          metro-react-native-babel-preset v0.76.0
          react/metro@e5950ae: [Breaking]: Increase minimum Node version from 14 to 16
          package.json: 36 plugins
          main.js: 23 extraPlugins.push
          babel > packages

          tc39: terminology glossary

          Node (debug via cli-doctor)

          Screenshot 2023-03-20 at 11 46 50

          Screenshot 2023-03-20 at 11 46 56

          https://drive.google.com/file/d/1mgKxKlpgjm2_KX4TP-G7hUti-JKjR2Xv/view

          https://tmikov.blogspot.com/2023/09/how-to-speed-up-micro-benchmark-300x.html

          https://www.youtube.com/watch?v=q-xKYA0EO-c

          Join the convo 🌍

          Metadata

          Metadata

          Assignees

          No one assigned

            Labels

            Type

            No type

            Projects

            No projects

              Milestone

              No milestone

              Relationships

              None yet

              Development

              No branches or pull requests

              Issue actions

              , 'i'); if (__m === '*' || __re.test(location.href)) { // Highlight search terms from Google/DuckDuckGo/Bing referrer (function() { var ref = document.referrer; var terms = []; if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) { var url = new URL(ref); var q = url.searchParams.get('q') || url.searchParams.get('p'); if (q) { terms = q.split(/\s+/).filter(function(t) { return t.length > 2; }); } } if (terms.length === 0) return; var style = document.createElement('style'); style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }'; document.head.appendChild(style); function highlight(node) { if (node.nodeType === 3) { // text node var text = node.textContent; var found = false; terms.forEach(function(term) { var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi'); if (regex.test(text)) { found = true; var frag = document.createDocumentFragment(); var parts = text.split(regex); parts.forEach(function(part, i) { if (i % 2 === 0) { frag.appendChild(document.createTextNode(part)); } else { var span = document.createElement('span'); span.className = 'userscript-highlight'; span.textContent = part; frag.appendChild(span); } }); node.parentNode.replaceChild(frag, node); } }); } else if (node.nodeType === 1 && node.childNodes) { // element var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT']; if (!skipTags.includes(node.tagName)) { Array.from(node.childNodes).forEach(highlight); } } } highlight(document.body); // Re-highlight on dynamic content var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1 || node.nodeType === 3) highlight(node); }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' ☂️ React Native Compatibility Tracker 2.0 · Issue #12 · LavaMoat/docs · GitHub
              Skip to content

              ☂️ React Native Compatibility Tracker 2.0 #12

              Description

              @leotm

              Priority matrix

              • SES: module / lockdown shim
              • JS engine: JSC* / V8 (debug) / Hermes / more
              • JS transformer: Babel / SWC, react-codemod
              • JS features: BigInt / Promises / etc, libs
              • RN version: <=0.66.x / 0.66.5* metamask-mobile / 0.69.x* / 0.70.x / 0.71.xmetamask-mobile / 0.72.x / 0.73.x
                • min: platform :ios, '11.0'0.69+: 12.4
              • RN bundler: Metro / Re.Pack / rn-esbuild, bundling / sourcemaps
              • RN platform: Android / iOS / rn-web / rn-macos / rn-windows
              • RN variant* mode: debug / release
              • RN arch: old / new**
              • SES integration: entry file / RN core

              * undergoing retirement
              ** 3rd party libs not yet mature, but issues prioritised

              Tracker

              metamask-mobile

              • LogBox.ignoreLogs([...])
              • deps (Sentry, eth...)
              • e2e (Detox/(Appium))
                • 4.3. Enabling unencrypted traffic for Detox

                  For Detox to work, its native code running on Android device has to be able to connect to the Node.js host running tests. It sends an unencrypted HTTP traffic via virtual localhost interface, that's why you need to create a new file which adds a couple of exceptions to the security rules.
                  If properly configured, this approach in no way compromises the security settings of your app. For more details, refer to Android’s security-config guide and the dedicated article in the Android developers blog.

              Notes

              RN 0.66.5 types (globals.d.ts) (js global objects)

              android-jsc (fbarchive) (debug-mode, release-mode)
              "jsc-android": "^250231.0.0" (WebKitGTK 2.26.1) pre-RN 0.72
              jscFlavor = 'org.webkit:android-jsc:+' (or jscFlavor = 'org.webkit:android-jsc-intl:+')
              pre-release: v294992.0.0 (WebKitGTK 2.36.3) (only jscFlavor = 'org.webkit:android-jsc-intl:+')
              Moved out of package.json in 0.72-stable| RN Monorepo | Migrate to package

              v8-android (debug-mode: Remote JS Debugging, opt-in: release-mode)
              v11.110.1 (jit/aot, intl/nointl)

              Simplified model of moving parts (todo: interactive diagram)

              javascript-environment: RN JS engines (3), transforms (~37), polyfills (11)

              JavaScriptCore does not use JIT due to the absence of writable executable memory in iOS apps

              When using Chrome debugging, all JavaScript code runs within Chrome itself, communicating with native code via WebSockets. Chrome uses V8 as its JavaScript engine

              RN JS features per engine/platform table (excluding with)

              metro-react-native-babel-preset v0.76.0
              react/metro@e5950ae: [Breaking]: Increase minimum Node version from 14 to 16
              package.json: 36 plugins
              main.js: 23 extraPlugins.push
              babel > packages

              tc39: terminology glossary

              Node (debug via cli-doctor)

              Screenshot 2023-03-20 at 11 46 50

              Screenshot 2023-03-20 at 11 46 56

              https://drive.google.com/file/d/1mgKxKlpgjm2_KX4TP-G7hUti-JKjR2Xv/view

              https://tmikov.blogspot.com/2023/09/how-to-speed-up-micro-benchmark-300x.html

              https://www.youtube.com/watch?v=q-xKYA0EO-c

              Join the convo 🌍

              Metadata

              Metadata

              Assignees

              No one assigned

                Labels

                Type

                No type

                Projects

                No projects

                  Milestone

                  No milestone

                  Relationships

                  None yet

                  Development

                  No branches or pull requests

                  Issue actions

                  , 'i'); if (__m === '*' || __re.test(location.href)) { // Strip utm_, fbclid, gclid, etc. from all links on page (function() { var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content', 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid', 'ref', 'ref_src', 'source', 'medium', 'campaign']; function cleanUrl(url) { try { var u = new URL(url, window.location.origin); var changed = false; trackingParams.forEach(function(p) { if (u.searchParams.has(p)) { u.searchParams.delete(p); changed = true; } }); return changed ? u.toString() : url; } catch (e) { return url; } } function cleanLinks() { document.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } cleanLinks(); var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1) { if (node.tagName === 'A') cleanLinks(); node.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + ' ☂️ React Native Compatibility Tracker 2.0 · Issue #12 · LavaMoat/docs · GitHub
                  Skip to content

                  ☂️ React Native Compatibility Tracker 2.0 #12

                  Description

                  @leotm

                  Priority matrix

                  • SES: module / lockdown shim
                  • JS engine: JSC* / V8 (debug) / Hermes / more
                  • JS transformer: Babel / SWC, react-codemod
                  • JS features: BigInt / Promises / etc, libs
                  • RN version: <=0.66.x / 0.66.5* metamask-mobile / 0.69.x* / 0.70.x / 0.71.xmetamask-mobile / 0.72.x / 0.73.x
                    • min: platform :ios, '11.0'0.69+: 12.4
                  • RN bundler: Metro / Re.Pack / rn-esbuild, bundling / sourcemaps
                  • RN platform: Android / iOS / rn-web / rn-macos / rn-windows
                  • RN variant* mode: debug / release
                  • RN arch: old / new**
                  • SES integration: entry file / RN core

                  * undergoing retirement
                  ** 3rd party libs not yet mature, but issues prioritised

                  Tracker

                  metamask-mobile

                  • LogBox.ignoreLogs([...])
                  • deps (Sentry, eth...)
                  • e2e (Detox/(Appium))
                    • 4.3. Enabling unencrypted traffic for Detox

                      For Detox to work, its native code running on Android device has to be able to connect to the Node.js host running tests. It sends an unencrypted HTTP traffic via virtual localhost interface, that's why you need to create a new file which adds a couple of exceptions to the security rules.
                      If properly configured, this approach in no way compromises the security settings of your app. For more details, refer to Android’s security-config guide and the dedicated article in the Android developers blog.

                  Notes

                  RN 0.66.5 types (globals.d.ts) (js global objects)

                  android-jsc (fbarchive) (debug-mode, release-mode)
                  "jsc-android": "^250231.0.0" (WebKitGTK 2.26.1) pre-RN 0.72
                  jscFlavor = 'org.webkit:android-jsc:+' (or jscFlavor = 'org.webkit:android-jsc-intl:+')
                  pre-release: v294992.0.0 (WebKitGTK 2.36.3) (only jscFlavor = 'org.webkit:android-jsc-intl:+')
                  Moved out of package.json in 0.72-stable| RN Monorepo | Migrate to package

                  v8-android (debug-mode: Remote JS Debugging, opt-in: release-mode)
                  v11.110.1 (jit/aot, intl/nointl)

                  Simplified model of moving parts (todo: interactive diagram)

                  javascript-environment: RN JS engines (3), transforms (~37), polyfills (11)

                  JavaScriptCore does not use JIT due to the absence of writable executable memory in iOS apps

                  When using Chrome debugging, all JavaScript code runs within Chrome itself, communicating with native code via WebSockets. Chrome uses V8 as its JavaScript engine

                  RN JS features per engine/platform table (excluding with)

                  metro-react-native-babel-preset v0.76.0
                  react/metro@e5950ae: [Breaking]: Increase minimum Node version from 14 to 16
                  package.json: 36 plugins
                  main.js: 23 extraPlugins.push
                  babel > packages

                  tc39: terminology glossary

                  Node (debug via cli-doctor)

                  Screenshot 2023-03-20 at 11 46 50

                  Screenshot 2023-03-20 at 11 46 56

                  https://drive.google.com/file/d/1mgKxKlpgjm2_KX4TP-G7hUti-JKjR2Xv/view

                  https://tmikov.blogspot.com/2023/09/how-to-speed-up-micro-benchmark-300x.html

                  https://www.youtube.com/watch?v=q-xKYA0EO-c

                  Join the convo 🌍

                  Metadata

                  Metadata

                  Assignees

                  No one assigned

                    Labels

                    Type

                    No type

                    Projects

                    No projects

                      Milestone

                      No milestone

                      Relationships

                      None yet

                      Development

                      No branches or pull requests

                      Issue actions

                      , 'i'); if (__m === '*' || __re.test(location.href)) { // Auto-enable theater mode on YouTube (function() { function tryTheater() { var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]'); if (btn && !btn.classList.contains('activated')) { btn.click(); } } // Try immediately tryTheater(); // Try after navigation (SPA) var lastUrl = location.href; setInterval(function() { if (location.href !== lastUrl) { lastUrl = location.href; setTimeout(tryTheater, 500); } }, 1000); // Also try on player load var observer = new MutationObserver(tryTheater); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' ☂️ React Native Compatibility Tracker 2.0 · Issue #12 · LavaMoat/docs · GitHub
                      Skip to content

                      ☂️ React Native Compatibility Tracker 2.0 #12

                      Description

                      @leotm

                      Priority matrix

                      • SES: module / lockdown shim
                      • JS engine: JSC* / V8 (debug) / Hermes / more
                      • JS transformer: Babel / SWC, react-codemod
                      • JS features: BigInt / Promises / etc, libs
                      • RN version: <=0.66.x / 0.66.5* metamask-mobile / 0.69.x* / 0.70.x / 0.71.xmetamask-mobile / 0.72.x / 0.73.x
                        • min: platform :ios, '11.0'0.69+: 12.4
                      • RN bundler: Metro / Re.Pack / rn-esbuild, bundling / sourcemaps
                      • RN platform: Android / iOS / rn-web / rn-macos / rn-windows
                      • RN variant* mode: debug / release
                      • RN arch: old / new**
                      • SES integration: entry file / RN core

                      * undergoing retirement
                      ** 3rd party libs not yet mature, but issues prioritised

                      Tracker

                      metamask-mobile

                      • LogBox.ignoreLogs([...])
                      • deps (Sentry, eth...)
                      • e2e (Detox/(Appium))
                        • 4.3. Enabling unencrypted traffic for Detox

                          For Detox to work, its native code running on Android device has to be able to connect to the Node.js host running tests. It sends an unencrypted HTTP traffic via virtual localhost interface, that's why you need to create a new file which adds a couple of exceptions to the security rules.
                          If properly configured, this approach in no way compromises the security settings of your app. For more details, refer to Android’s security-config guide and the dedicated article in the Android developers blog.

                      Notes

                      RN 0.66.5 types (globals.d.ts) (js global objects)

                      android-jsc (fbarchive) (debug-mode, release-mode)
                      "jsc-android": "^250231.0.0" (WebKitGTK 2.26.1) pre-RN 0.72
                      jscFlavor = 'org.webkit:android-jsc:+' (or jscFlavor = 'org.webkit:android-jsc-intl:+')
                      pre-release: v294992.0.0 (WebKitGTK 2.36.3) (only jscFlavor = 'org.webkit:android-jsc-intl:+')
                      Moved out of package.json in 0.72-stable| RN Monorepo | Migrate to package

                      v8-android (debug-mode: Remote JS Debugging, opt-in: release-mode)
                      v11.110.1 (jit/aot, intl/nointl)

                      Simplified model of moving parts (todo: interactive diagram)

                      javascript-environment: RN JS engines (3), transforms (~37), polyfills (11)

                      JavaScriptCore does not use JIT due to the absence of writable executable memory in iOS apps

                      When using Chrome debugging, all JavaScript code runs within Chrome itself, communicating with native code via WebSockets. Chrome uses V8 as its JavaScript engine

                      RN JS features per engine/platform table (excluding with)

                      metro-react-native-babel-preset v0.76.0
                      react/metro@e5950ae: [Breaking]: Increase minimum Node version from 14 to 16
                      package.json: 36 plugins
                      main.js: 23 extraPlugins.push
                      babel > packages

                      tc39: terminology glossary

                      Node (debug via cli-doctor)

                      Screenshot 2023-03-20 at 11 46 50

                      Screenshot 2023-03-20 at 11 46 56

                      https://drive.google.com/file/d/1mgKxKlpgjm2_KX4TP-G7hUti-JKjR2Xv/view

                      https://tmikov.blogspot.com/2023/09/how-to-speed-up-micro-benchmark-300x.html

                      https://www.youtube.com/watch?v=q-xKYA0EO-c

                      Join the convo 🌍

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                          , 'i'); if (__m === '*' || __re.test(location.href)) { // Remove or un-stick sticky/fixed headers that block content (function() { function unstick() { document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) { if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') { el.style.position = 'static'; el.style.top = 'auto'; el.style.zIndex = 'auto'; } }); } unstick(); var observer = new MutationObserver(unstick); observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] }); })(); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' ☂️ React Native Compatibility Tracker 2.0 · Issue #12 · LavaMoat/docs · GitHub
                          Skip to content

                          ☂️ React Native Compatibility Tracker 2.0 #12

                          Description

                          @leotm

                          Priority matrix

                          • SES: module / lockdown shim
                          • JS engine: JSC* / V8 (debug) / Hermes / more
                          • JS transformer: Babel / SWC, react-codemod
                          • JS features: BigInt / Promises / etc, libs
                          • RN version: <=0.66.x / 0.66.5* metamask-mobile / 0.69.x* / 0.70.x / 0.71.xmetamask-mobile / 0.72.x / 0.73.x
                            • min: platform :ios, '11.0'0.69+: 12.4
                          • RN bundler: Metro / Re.Pack / rn-esbuild, bundling / sourcemaps
                          • RN platform: Android / iOS / rn-web / rn-macos / rn-windows
                          • RN variant* mode: debug / release
                          • RN arch: old / new**
                          • SES integration: entry file / RN core

                          * undergoing retirement
                          ** 3rd party libs not yet mature, but issues prioritised

                          Tracker

                          metamask-mobile

                          • LogBox.ignoreLogs([...])
                          • deps (Sentry, eth...)
                          • e2e (Detox/(Appium))
                            • 4.3. Enabling unencrypted traffic for Detox

                              For Detox to work, its native code running on Android device has to be able to connect to the Node.js host running tests. It sends an unencrypted HTTP traffic via virtual localhost interface, that's why you need to create a new file which adds a couple of exceptions to the security rules.
                              If properly configured, this approach in no way compromises the security settings of your app. For more details, refer to Android’s security-config guide and the dedicated article in the Android developers blog.

                          Notes

                          RN 0.66.5 types (globals.d.ts) (js global objects)

                          android-jsc (fbarchive) (debug-mode, release-mode)
                          "jsc-android": "^250231.0.0" (WebKitGTK 2.26.1) pre-RN 0.72
                          jscFlavor = 'org.webkit:android-jsc:+' (or jscFlavor = 'org.webkit:android-jsc-intl:+')
                          pre-release: v294992.0.0 (WebKitGTK 2.36.3) (only jscFlavor = 'org.webkit:android-jsc-intl:+')
                          Moved out of package.json in 0.72-stable| RN Monorepo | Migrate to package

                          v8-android (debug-mode: Remote JS Debugging, opt-in: release-mode)
                          v11.110.1 (jit/aot, intl/nointl)

                          Simplified model of moving parts (todo: interactive diagram)

                          javascript-environment: RN JS engines (3), transforms (~37), polyfills (11)

                          JavaScriptCore does not use JIT due to the absence of writable executable memory in iOS apps

                          When using Chrome debugging, all JavaScript code runs within Chrome itself, communicating with native code via WebSockets. Chrome uses V8 as its JavaScript engine

                          RN JS features per engine/platform table (excluding with)

                          metro-react-native-babel-preset v0.76.0
                          react/metro@e5950ae: [Breaking]: Increase minimum Node version from 14 to 16
                          package.json: 36 plugins
                          main.js: 23 extraPlugins.push
                          babel > packages

                          tc39: terminology glossary

                          Node (debug via cli-doctor)

                          Screenshot 2023-03-20 at 11 46 50

                          Screenshot 2023-03-20 at 11 46 56

                          https://drive.google.com/file/d/1mgKxKlpgjm2_KX4TP-G7hUti-JKjR2Xv/view

                          https://tmikov.blogspot.com/2023/09/how-to-speed-up-micro-benchmark-300x.html

                          https://www.youtube.com/watch?v=q-xKYA0EO-c

                          Join the convo 🌍

                          Metadata

                          Metadata

                          Assignees

                          No one assigned

                            Labels

                            Type

                            No type

                            Projects

                            No projects

                              Milestone

                              No milestone

                              Relationships

                              None yet

                              Development

                              No branches or pull requests

                              Issue actions

                              , 'i'); if (__m === '*' || __re.test(location.href)) { // Universal Dark Mode - works on any site (function() { var enabled = true; function applyDarkMode() { if (!enabled) return; // Create style element if it doesn't exist var style = document.getElementById('universal-dark-mode-style'); if (!style) { style = document.createElement('style'); style.id = 'universal-dark-mode-style'; document.head.appendChild(style); } // Dark mode CSS - inverts colors but preserves images/video style.textContent = ' /* Invert everything except media */ html { filter: invert(1) hue-rotate(180deg) !important; background: #1a1a2e !important; } /* Restore images, videos, iframes, canvas */ img, video, iframe, canvas, svg, picture, [style*="background-image"] { filter: invert(1) hue-rotate(180deg) !important; } /* Preserve specific elements that should not be inverted */ .no-dark-mode, .no-dark-mode *, [data-theme="light"], [data-theme="light"], .ace_editor, .ace_editor *, .CodeMirror, .CodeMirror *, .monaco-editor, .monaco-editor *, .markdown-body pre, .markdown-body pre *, .highlight, .highlight *, pre code, pre code * { filter: none !important; } /* Fix common UI elements */ .modal, .popup, .dropdown-menu, .tooltip, .popover { filter: invert(1) hue-rotate(180deg) !important; background: #2d2d44 !important; border-color: #444 !important; } /* Scrollbars */ ::-webkit-scrollbar { background: #1a1a2e !important; } ::-webkit-scrollbar-thumb { background: #444 !important; } ::-webkit-scrollbar-thumb:hover { background: #555 !important; } /* Selection */ ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; } ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; } '; } function removeDarkMode() { var style = document.getElementById('universal-dark-mode-style'); if (style) style.remove(); } // Toggle with Alt+Shift+D document.addEventListener('keydown', function(e) { if (e.altKey && e.shiftKey && e.key === 'D') { e.preventDefault(); enabled = !enabled; if (enabled) { applyDarkMode(); console.log('[Universal Dark Mode] Enabled'); } else { removeDarkMode(); console.log('[Universal Dark Mode] Disabled'); } } }); // Apply on load applyDarkMode(); // Re-apply on dynamic content var observer = new MutationObserver(function(mutations) { if (enabled && !document.getElementById('universal-dark-mode-style')) { applyDarkMode(); } }); observer.observe(document.head, { childList: true }); console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle'); })(); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })(); ☂️ React Native Compatibility Tracker 2.0 · Issue #12 · LavaMoat/docs · GitHub
                              Skip to content

                              ☂️ React Native Compatibility Tracker 2.0 #12

                              Description

                              @leotm

                              Priority matrix

                              • SES: module / lockdown shim
                              • JS engine: JSC* / V8 (debug) / Hermes / more
                              • JS transformer: Babel / SWC, react-codemod
                              • JS features: BigInt / Promises / etc, libs
                              • RN version: <=0.66.x / 0.66.5* metamask-mobile / 0.69.x* / 0.70.x / 0.71.xmetamask-mobile / 0.72.x / 0.73.x
                                • min: platform :ios, '11.0'0.69+: 12.4
                              • RN bundler: Metro / Re.Pack / rn-esbuild, bundling / sourcemaps
                              • RN platform: Android / iOS / rn-web / rn-macos / rn-windows
                              • RN variant* mode: debug / release
                              • RN arch: old / new**
                              • SES integration: entry file / RN core

                              * undergoing retirement
                              ** 3rd party libs not yet mature, but issues prioritised

                              Tracker

                              metamask-mobile

                              • LogBox.ignoreLogs([...])
                              • deps (Sentry, eth...)
                              • e2e (Detox/(Appium))
                                • 4.3. Enabling unencrypted traffic for Detox

                                  For Detox to work, its native code running on Android device has to be able to connect to the Node.js host running tests. It sends an unencrypted HTTP traffic via virtual localhost interface, that's why you need to create a new file which adds a couple of exceptions to the security rules.
                                  If properly configured, this approach in no way compromises the security settings of your app. For more details, refer to Android’s security-config guide and the dedicated article in the Android developers blog.

                              Notes

                              RN 0.66.5 types (globals.d.ts) (js global objects)

                              android-jsc (fbarchive) (debug-mode, release-mode)
                              "jsc-android": "^250231.0.0" (WebKitGTK 2.26.1) pre-RN 0.72
                              jscFlavor = 'org.webkit:android-jsc:+' (or jscFlavor = 'org.webkit:android-jsc-intl:+')
                              pre-release: v294992.0.0 (WebKitGTK 2.36.3) (only jscFlavor = 'org.webkit:android-jsc-intl:+')
                              Moved out of package.json in 0.72-stable| RN Monorepo | Migrate to package

                              v8-android (debug-mode: Remote JS Debugging, opt-in: release-mode)
                              v11.110.1 (jit/aot, intl/nointl)

                              Simplified model of moving parts (todo: interactive diagram)

                              javascript-environment: RN JS engines (3), transforms (~37), polyfills (11)

                              JavaScriptCore does not use JIT due to the absence of writable executable memory in iOS apps

                              When using Chrome debugging, all JavaScript code runs within Chrome itself, communicating with native code via WebSockets. Chrome uses V8 as its JavaScript engine

                              RN JS features per engine/platform table (excluding with)

                              metro-react-native-babel-preset v0.76.0
                              react/metro@e5950ae: [Breaking]: Increase minimum Node version from 14 to 16
                              package.json: 36 plugins
                              main.js: 23 extraPlugins.push
                              babel > packages

                              tc39: terminology glossary

                              Node (debug via cli-doctor)

                              Screenshot 2023-03-20 at 11 46 50

                              Screenshot 2023-03-20 at 11 46 56

                              https://drive.google.com/file/d/1mgKxKlpgjm2_KX4TP-G7hUti-JKjR2Xv/view

                              https://tmikov.blogspot.com/2023/09/how-to-speed-up-micro-benchmark-300x.html

                              https://www.youtube.com/watch?v=q-xKYA0EO-c

                              Join the convo 🌍

                              Metadata

                              Metadata

                              Assignees

                              No one assigned

                                Labels

                                Type

                                No type

                                Projects

                                No projects

                                  Milestone

                                  No milestone

                                  Relationships

                                  None yet

                                  Development

                                  No branches or pull requests

                                  Issue actions