BranchesTags

Repository files navigation

Dev Book

GitHub Repo starsGitHub issuesGitHub forksGitHub license

An open-source tech notebook for developers. Use it to learn, revise, and quickly recall important programming concepts and tools.

Goals

  • Learn by writing
  • Keep notes simple and easy to revise
  • Grow knowledge from basic to advanced
  • Build strong fundamentals for software engineering

Status

This repository is a continuous work in progress and will be updated regularly with new topics and improvements.

Report an Issue

If you find any errors, mistakes, or missing information, please feel free to create an issue. Follow these steps:

  1. Go to the Issues page of this repository.
  2. Click on New Issue.
  3. Write a clear title describing the problem.
  4. Explain the issue step by step (example: what you tried, what happened, expected behavior).
  5. Add any screenshots or code snippets if needed.
  6. Click Submit new issue.

Your contributions help keep this repo accurate and useful for everyone! 🚀

About

An open-source tech notebook for developers. Use it to learn, revise, and quickly recall important programming concepts and tools.

Resources

Readme
MIT license
Activity

Stars

2 stars

Watchers

0 watching

Forks

0 forks
Report repository

Releases

Packages

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all \u003cpre\u003e\u003ccode\u003e 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" + '
Skip to content
BranchesTags

Repository files navigation

Dev Book

GitHub Repo starsGitHub issuesGitHub forksGitHub license

An open-source tech notebook for developers. Use it to learn, revise, and quickly recall important programming concepts and tools.

Goals

  • Learn by writing
  • Keep notes simple and easy to revise
  • Grow knowledge from basic to advanced
  • Build strong fundamentals for software engineering

Status

This repository is a continuous work in progress and will be updated regularly with new topics and improvements.

Report an Issue

If you find any errors, mistakes, or missing information, please feel free to create an issue. Follow these steps:

  1. Go to the Issues page of this repository.
  2. Click on New Issue.
  3. Write a clear title describing the problem.
  4. Explain the issue step by step (example: what you tried, what happened, expected behavior).
  5. Add any screenshots or code snippets if needed.
  6. Click Submit new issue.

Your contributions help keep this repo accurate and useful for everyone! 🚀

About

An open-source tech notebook for developers. Use it to learn, revise, and quickly recall important programming concepts and tools.

Resources

Readme
MIT license
Activity

Stars

2 stars

Watchers

0 watching

Forks

0 forks
Report repository

Releases

Packages

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

Repository files navigation

Dev Book

GitHub Repo starsGitHub issuesGitHub forksGitHub license

An open-source tech notebook for developers. Use it to learn, revise, and quickly recall important programming concepts and tools.

Goals

  • Learn by writing
  • Keep notes simple and easy to revise
  • Grow knowledge from basic to advanced
  • Build strong fundamentals for software engineering

Status

This repository is a continuous work in progress and will be updated regularly with new topics and improvements.

Report an Issue

If you find any errors, mistakes, or missing information, please feel free to create an issue. Follow these steps:

  1. Go to the Issues page of this repository.
  2. Click on New Issue.
  3. Write a clear title describing the problem.
  4. Explain the issue step by step (example: what you tried, what happened, expected behavior).
  5. Add any screenshots or code snippets if needed.
  6. Click Submit new issue.

Your contributions help keep this repo accurate and useful for everyone! 🚀

About

An open-source tech notebook for developers. Use it to learn, revise, and quickly recall important programming concepts and tools.

Resources

Readme
MIT license
Activity

Stars

2 stars

Watchers

0 watching

Forks

0 forks
Report repository

Releases

Packages

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 \u003e 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

Repository files navigation

Dev Book

GitHub Repo starsGitHub issuesGitHub forksGitHub license

An open-source tech notebook for developers. Use it to learn, revise, and quickly recall important programming concepts and tools.

Goals

  • Learn by writing
  • Keep notes simple and easy to revise
  • Grow knowledge from basic to advanced
  • Build strong fundamentals for software engineering

Status

This repository is a continuous work in progress and will be updated regularly with new topics and improvements.

Report an Issue

If you find any errors, mistakes, or missing information, please feel free to create an issue. Follow these steps:

  1. Go to the Issues page of this repository.
  2. Click on New Issue.
  3. Write a clear title describing the problem.
  4. Explain the issue step by step (example: what you tried, what happened, expected behavior).
  5. Add any screenshots or code snippets if needed.
  6. Click Submit new issue.

Your contributions help keep this repo accurate and useful for everyone! 🚀

About

An open-source tech notebook for developers. Use it to learn, revise, and quickly recall important programming concepts and tools.

Resources

Readme
MIT license
Activity

Stars

2 stars

Watchers

0 watching

Forks

0 forks
Report repository

Releases

Packages

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

Repository files navigation

Dev Book

GitHub Repo starsGitHub issuesGitHub forksGitHub license

An open-source tech notebook for developers. Use it to learn, revise, and quickly recall important programming concepts and tools.

Goals

  • Learn by writing
  • Keep notes simple and easy to revise
  • Grow knowledge from basic to advanced
  • Build strong fundamentals for software engineering

Status

This repository is a continuous work in progress and will be updated regularly with new topics and improvements.

Report an Issue

If you find any errors, mistakes, or missing information, please feel free to create an issue. Follow these steps:

  1. Go to the Issues page of this repository.
  2. Click on New Issue.
  3. Write a clear title describing the problem.
  4. Explain the issue step by step (example: what you tried, what happened, expected behavior).
  5. Add any screenshots or code snippets if needed.
  6. Click Submit new issue.

Your contributions help keep this repo accurate and useful for everyone! 🚀

About

An open-source tech notebook for developers. Use it to learn, revise, and quickly recall important programming concepts and tools.

Resources

Readme
MIT license
Activity

Stars

2 stars

Watchers

0 watching

Forks

0 forks
Report repository

Releases

Packages

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

Dev Book

GitHub Repo starsGitHub issuesGitHub forksGitHub license

An open-source tech notebook for developers. Use it to learn, revise, and quickly recall important programming concepts and tools.

Goals

  • Learn by writing
  • Keep notes simple and easy to revise
  • Grow knowledge from basic to advanced
  • Build strong fundamentals for software engineering

Status

This repository is a continuous work in progress and will be updated regularly with new topics and improvements.

Report an Issue

If you find any errors, mistakes, or missing information, please feel free to create an issue. Follow these steps:

  1. Go to the Issues page of this repository.
  2. Click on New Issue.
  3. Write a clear title describing the problem.
  4. Explain the issue step by step (example: what you tried, what happened, expected behavior).
  5. Add any screenshots or code snippets if needed.
  6. Click Submit new issue.

Your contributions help keep this repo accurate and useful for everyone! 🚀

About

An open-source tech notebook for developers. Use it to learn, revise, and quickly recall important programming concepts and tools.

Resources

Readme
MIT license
Activity

Stars

2 stars

Watchers

0 watching

Forks

0 forks
Report repository

Releases

Packages

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

Repository files navigation

Dev Book

GitHub Repo starsGitHub issuesGitHub forksGitHub license

An open-source tech notebook for developers. Use it to learn, revise, and quickly recall important programming concepts and tools.

Goals

  • Learn by writing
  • Keep notes simple and easy to revise
  • Grow knowledge from basic to advanced
  • Build strong fundamentals for software engineering

Status

This repository is a continuous work in progress and will be updated regularly with new topics and improvements.

Report an Issue

If you find any errors, mistakes, or missing information, please feel free to create an issue. Follow these steps:

  1. Go to the Issues page of this repository.
  2. Click on New Issue.
  3. Write a clear title describing the problem.
  4. Explain the issue step by step (example: what you tried, what happened, expected behavior).
  5. Add any screenshots or code snippets if needed.
  6. Click Submit new issue.

Your contributions help keep this repo accurate and useful for everyone! 🚀

About

An open-source tech notebook for developers. Use it to learn, revise, and quickly recall important programming concepts and tools.

Resources

Readme
MIT license
Activity

Stars

2 stars

Watchers

0 watching

Forks

0 forks
Report repository

Releases

Packages

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); } })(); })();
Skip to content
BranchesTags

Repository files navigation

Dev Book

GitHub Repo starsGitHub issuesGitHub forksGitHub license

An open-source tech notebook for developers. Use it to learn, revise, and quickly recall important programming concepts and tools.

Goals

  • Learn by writing
  • Keep notes simple and easy to revise
  • Grow knowledge from basic to advanced
  • Build strong fundamentals for software engineering

Status

This repository is a continuous work in progress and will be updated regularly with new topics and improvements.

Report an Issue

If you find any errors, mistakes, or missing information, please feel free to create an issue. Follow these steps:

  1. Go to the Issues page of this repository.
  2. Click on New Issue.
  3. Write a clear title describing the problem.
  4. Explain the issue step by step (example: what you tried, what happened, expected behavior).
  5. Add any screenshots or code snippets if needed.
  6. Click Submit new issue.

Your contributions help keep this repo accurate and useful for everyone! 🚀

About

An open-source tech notebook for developers. Use it to learn, revise, and quickly recall important programming concepts and tools.

Resources

Readme
MIT license
Activity

Stars

2 stars

Watchers

0 watching

Forks

0 forks
Report repository

Releases

Packages

Contributors

Languages