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An ES2019 spec-compliant Array.prototype.flat shim/polyfill/replacement that works as far down as ES3.

This package implements the es-shim API interface. It works in an ES3-supported environment and complies with the proposed spec.

Because Array.prototype.flat depends on a receiver (the this value), the main export takes the array to operate on as the first argument.

Getting started

npm install --save array.prototype.flat

Usage/Examples

varflat=require('array.prototype.flat');varassert=require('assert');vararr=[1,[2],[],3,[[4]]];assert.deepEqual(flat(arr,1),[1,2,3,[4]]);
varflat=require('array.prototype.flat');varassert=require('assert');/* when Array#flat is not present */deleteArray.prototype.flat;varshimmedFlat=flat.shim();assert.equal(shimmedFlat,flat.getPolyfill());assert.deepEqual(arr.flat(),flat(arr));
varflat=require('array.prototype.flat');varassert=require('assert');/* when Array#flat is present */varshimmedIncludes=flat.shim();varmapper=function(x){return[x,1];};assert.equal(shimmedIncludes,Array.prototype.flat);assert.deepEqual(arr.flat(mapper),flat(arr,mapper));

Tests

Simply clone the repo, npm install, and run npm test

About

An ESnext spec-compliant `Array.prototype.flat` shim/polyfill/replacement that works as far down as ES3.

Topics

arrayecmascriptflatflattenjavascriptpolyfillshim

Resources

Readme
MIT license

Code of conduct

Code of conduct

Security policy

Security policy
Activity
Custom properties

Stars

31 stars

Watchers

3 watching

Forks

8 forks
Report repository

Releases

Sponsor this project

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n 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;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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array.prototype.flat Version Badge
github actionscoveragedependency statusdev dependency statusLicenseDownloads
npm badge
An ES2019 spec-compliant Array.prototype.flat shim/polyfill/replacement that works as far down as ES3.
This package implements the es-shim API interface. It works in an ES3-supported environment and complies with the proposed spec.
Because Array.prototype.flat depends on a receiver (the this value), the main export takes the array to operate on as the first argument.
Getting started
npm install --save array.prototype.flat
Usage/Examples
varflat=require('array.prototype.flat');varassert=require('assert');vararr=[1,[2],[],3,[[4]]];assert.deepEqual(flat(arr,1),[1,2,3,[4]]);
varflat=require('array.prototype.flat');varassert=require('assert');/* when Array#flat is not present */deleteArray.prototype.flat;varshimmedFlat=flat.shim();assert.equal(shimmedFlat,flat.getPolyfill());assert.deepEqual(arr.flat(),flat(arr));
varflat=require('array.prototype.flat');varassert=require('assert');/* when Array#flat is present */varshimmedIncludes=flat.shim();varmapper=function(x){return[x,1];};assert.equal(shimmedIncludes,Array.prototype.flat);assert.deepEqual(arr.flat(mapper),flat(arr,mapper));
Tests
Simply clone the repo, npm install, and run npm test
About
An ESnext spec-compliant `Array.prototype.flat` shim/polyfill/replacement that works as far down as ES3.
Topics
arrayecmascriptflatflattenjavascriptpolyfillshim
Resources
Readme
MIT license
Code of conduct
Code of conduct
Security policy
Security policy
Activity
Custom properties
Stars
31 stars
Watchers
3 watching
Forks
8 forks
Report repository
Releases
Sponsor this project
Used by
Contributors
Languages

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

Skip to content
BranchesTags
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array.prototype.flat Version Badge
github actionscoveragedependency statusdev dependency statusLicenseDownloads
npm badge
An ES2019 spec-compliant Array.prototype.flat shim/polyfill/replacement that works as far down as ES3.
This package implements the es-shim API interface. It works in an ES3-supported environment and complies with the proposed spec.
Because Array.prototype.flat depends on a receiver (the this value), the main export takes the array to operate on as the first argument.
Getting started
npm install --save array.prototype.flat
Usage/Examples
varflat=require('array.prototype.flat');varassert=require('assert');vararr=[1,[2],[],3,[[4]]];assert.deepEqual(flat(arr,1),[1,2,3,[4]]);
varflat=require('array.prototype.flat');varassert=require('assert');/* when Array#flat is not present */deleteArray.prototype.flat;varshimmedFlat=flat.shim();assert.equal(shimmedFlat,flat.getPolyfill());assert.deepEqual(arr.flat(),flat(arr));
varflat=require('array.prototype.flat');varassert=require('assert');/* when Array#flat is present */varshimmedIncludes=flat.shim();varmapper=function(x){return[x,1];};assert.equal(shimmedIncludes,Array.prototype.flat);assert.deepEqual(arr.flat(mapper),flat(arr,mapper));
Tests
Simply clone the repo, npm install, and run npm test
About
An ESnext spec-compliant `Array.prototype.flat` shim/polyfill/replacement that works as far down as ES3.
Topics
arrayecmascriptflatflattenjavascriptpolyfillshim
Resources
Readme
MIT license
Code of conduct
Code of conduct
Security policy
Security policy
Activity
Custom properties
Stars
31 stars
Watchers
3 watching
Forks
8 forks
Report repository
Releases
Sponsor this project
Used by
Contributors
Languages

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

Skip to content
BranchesTags
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array.prototype.flat Version Badge
github actionscoveragedependency statusdev dependency statusLicenseDownloads
npm badge
An ES2019 spec-compliant Array.prototype.flat shim/polyfill/replacement that works as far down as ES3.
This package implements the es-shim API interface. It works in an ES3-supported environment and complies with the proposed spec.
Because Array.prototype.flat depends on a receiver (the this value), the main export takes the array to operate on as the first argument.
Getting started
npm install --save array.prototype.flat
Usage/Examples
varflat=require('array.prototype.flat');varassert=require('assert');vararr=[1,[2],[],3,[[4]]];assert.deepEqual(flat(arr,1),[1,2,3,[4]]);
varflat=require('array.prototype.flat');varassert=require('assert');/* when Array#flat is not present */deleteArray.prototype.flat;varshimmedFlat=flat.shim();assert.equal(shimmedFlat,flat.getPolyfill());assert.deepEqual(arr.flat(),flat(arr));
varflat=require('array.prototype.flat');varassert=require('assert');/* when Array#flat is present */varshimmedIncludes=flat.shim();varmapper=function(x){return[x,1];};assert.equal(shimmedIncludes,Array.prototype.flat);assert.deepEqual(arr.flat(mapper),flat(arr,mapper));
Tests
Simply clone the repo, npm install, and run npm test
About
An ESnext spec-compliant `Array.prototype.flat` shim/polyfill/replacement that works as far down as ES3.
Topics
arrayecmascriptflatflattenjavascriptpolyfillshim
Resources
Readme
MIT license
Code of conduct
Code of conduct
Security policy
Security policy
Activity
Custom properties
Stars
31 stars
Watchers
3 watching
Forks
8 forks
Report repository
Releases
Sponsor this project
Used by
Contributors
Languages

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

Skip to content
BranchesTags
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array.prototype.flat Version Badge
github actionscoveragedependency statusdev dependency statusLicenseDownloads
npm badge
An ES2019 spec-compliant Array.prototype.flat shim/polyfill/replacement that works as far down as ES3.
This package implements the es-shim API interface. It works in an ES3-supported environment and complies with the proposed spec.
Because Array.prototype.flat depends on a receiver (the this value), the main export takes the array to operate on as the first argument.
Getting started
npm install --save array.prototype.flat
Usage/Examples
varflat=require('array.prototype.flat');varassert=require('assert');vararr=[1,[2],[],3,[[4]]];assert.deepEqual(flat(arr,1),[1,2,3,[4]]);
varflat=require('array.prototype.flat');varassert=require('assert');/* when Array#flat is not present */deleteArray.prototype.flat;varshimmedFlat=flat.shim();assert.equal(shimmedFlat,flat.getPolyfill());assert.deepEqual(arr.flat(),flat(arr));
varflat=require('array.prototype.flat');varassert=require('assert');/* when Array#flat is present */varshimmedIncludes=flat.shim();varmapper=function(x){return[x,1];};assert.equal(shimmedIncludes,Array.prototype.flat);assert.deepEqual(arr.flat(mapper),flat(arr,mapper));
Tests
Simply clone the repo, npm install, and run npm test
About
An ESnext spec-compliant `Array.prototype.flat` shim/polyfill/replacement that works as far down as ES3.
Topics
arrayecmascriptflatflattenjavascriptpolyfillshim
Resources
Readme
MIT license
Code of conduct
Code of conduct
Security policy
Security policy
Activity
Custom properties
Stars
31 stars
Watchers
3 watching
Forks
8 forks
Report repository
Releases
Sponsor this project
Used by
Contributors
Languages

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

Skip to content
BranchesTags
Repository files navigation
array.prototype.flat Version Badge
github actionscoveragedependency statusdev dependency statusLicenseDownloads
npm badge
An ES2019 spec-compliant Array.prototype.flat shim/polyfill/replacement that works as far down as ES3.
This package implements the es-shim API interface. It works in an ES3-supported environment and complies with the proposed spec.
Because Array.prototype.flat depends on a receiver (the this value), the main export takes the array to operate on as the first argument.
Getting started
npm install --save array.prototype.flat
Usage/Examples
varflat=require('array.prototype.flat');varassert=require('assert');vararr=[1,[2],[],3,[[4]]];assert.deepEqual(flat(arr,1),[1,2,3,[4]]);
varflat=require('array.prototype.flat');varassert=require('assert');/* when Array#flat is not present */deleteArray.prototype.flat;varshimmedFlat=flat.shim();assert.equal(shimmedFlat,flat.getPolyfill());assert.deepEqual(arr.flat(),flat(arr));
varflat=require('array.prototype.flat');varassert=require('assert');/* when Array#flat is present */varshimmedIncludes=flat.shim();varmapper=function(x){return[x,1];};assert.equal(shimmedIncludes,Array.prototype.flat);assert.deepEqual(arr.flat(mapper),flat(arr,mapper));
Tests
Simply clone the repo, npm install, and run npm test
About
An ESnext spec-compliant `Array.prototype.flat` shim/polyfill/replacement that works as far down as ES3.
Topics
arrayecmascriptflatflattenjavascriptpolyfillshim
Resources
Readme
MIT license
Code of conduct
Code of conduct
Security policy
Security policy
Activity
Custom properties
Stars
31 stars
Watchers
3 watching
Forks
8 forks
Report repository
Releases
Sponsor this project
Used by
Contributors
Languages

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

Skip to content
BranchesTags
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array.prototype.flat Version Badge
github actionscoveragedependency statusdev dependency statusLicenseDownloads
npm badge
An ES2019 spec-compliant Array.prototype.flat shim/polyfill/replacement that works as far down as ES3.
This package implements the es-shim API interface. It works in an ES3-supported environment and complies with the proposed spec.
Because Array.prototype.flat depends on a receiver (the this value), the main export takes the array to operate on as the first argument.
Getting started
npm install --save array.prototype.flat
Usage/Examples
varflat=require('array.prototype.flat');varassert=require('assert');vararr=[1,[2],[],3,[[4]]];assert.deepEqual(flat(arr,1),[1,2,3,[4]]);
varflat=require('array.prototype.flat');varassert=require('assert');/* when Array#flat is not present */deleteArray.prototype.flat;varshimmedFlat=flat.shim();assert.equal(shimmedFlat,flat.getPolyfill());assert.deepEqual(arr.flat(),flat(arr));
varflat=require('array.prototype.flat');varassert=require('assert');/* when Array#flat is present */varshimmedIncludes=flat.shim();varmapper=function(x){return[x,1];};assert.equal(shimmedIncludes,Array.prototype.flat);assert.deepEqual(arr.flat(mapper),flat(arr,mapper));
Tests
Simply clone the repo, npm install, and run npm test
About
An ESnext spec-compliant `Array.prototype.flat` shim/polyfill/replacement that works as far down as ES3.
Topics
arrayecmascriptflatflattenjavascriptpolyfillshim
Resources
Readme
MIT license
Code of conduct
Code of conduct
Security policy
Security policy
Activity
Custom properties
Stars
31 stars
Watchers
3 watching
Forks
8 forks
Report repository
Releases
Sponsor this project
Used by
Contributors
Languages

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

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array.prototype.flat Version Badge
github actionscoveragedependency statusdev dependency statusLicenseDownloads
npm badge
An ES2019 spec-compliant Array.prototype.flat shim/polyfill/replacement that works as far down as ES3.
This package implements the es-shim API interface. It works in an ES3-supported environment and complies with the proposed spec.
Because Array.prototype.flat depends on a receiver (the this value), the main export takes the array to operate on as the first argument.
Getting started
npm install --save array.prototype.flat
Usage/Examples
varflat=require('array.prototype.flat');varassert=require('assert');vararr=[1,[2],[],3,[[4]]];assert.deepEqual(flat(arr,1),[1,2,3,[4]]);
varflat=require('array.prototype.flat');varassert=require('assert');/* when Array#flat is not present */deleteArray.prototype.flat;varshimmedFlat=flat.shim();assert.equal(shimmedFlat,flat.getPolyfill());assert.deepEqual(arr.flat(),flat(arr));
varflat=require('array.prototype.flat');varassert=require('assert');/* when Array#flat is present */varshimmedIncludes=flat.shim();varmapper=function(x){return[x,1];};assert.equal(shimmedIncludes,Array.prototype.flat);assert.deepEqual(arr.flat(mapper),flat(arr,mapper));
Tests
Simply clone the repo, npm install, and run npm test
About
An ESnext spec-compliant `Array.prototype.flat` shim/polyfill/replacement that works as far down as ES3.
Topics
arrayecmascriptflatflattenjavascriptpolyfillshim
Resources
Readme
MIT license
Code of conduct
Code of conduct
Security policy
Security policy
Activity
Custom properties
Stars
31 stars
Watchers
3 watching
Forks
8 forks
Report repository
Releases
Sponsor this project
Used by
Contributors
Languages