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使用說明書

JavaScript30 Sample 連結

DayTopic
01JavaScript Drum Kit
02JS and CSS Clock
03CSS Variables
04Array Cardio Day 1
05Flex Panel Gallery
06Type Ahead
07Array Cardio Day 2
08Fun with HTML5 Canvas
09Dev Tools Domination
10Hold Shift and Check Checkboxes
11Custom Video Player
12Key Sequence Detection
13Slide in on Scroll
14JavaScript References VS Copying
15LocalStorage
16Mouse Move Shadow
17Sort Without Articles
18Adding Up Times with Reduce
19Webcam Fun
20Speech Detection
21Geolocation
22Follow Along Link Highlighter
23Speech Synthesis
24Sticky Nav
25Event Capture, Propagation, Bubbling and Once
26Stripe Follow Along Nav
27Click and Drag
28Video Speed Controller
29Countdown Timer
30Whack A Mole

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, '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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使用說明書
JavaScript30 Sample 連結
DayTopic
01JavaScript Drum Kit
02JS and CSS Clock
03CSS Variables
04Array Cardio Day 1
05Flex Panel Gallery
06Type Ahead
07Array Cardio Day 2
08Fun with HTML5 Canvas
09Dev Tools Domination
10Hold Shift and Check Checkboxes
11Custom Video Player
12Key Sequence Detection
13Slide in on Scroll
14JavaScript References VS Copying
15LocalStorage
16Mouse Move Shadow
17Sort Without Articles
18Adding Up Times with Reduce
19Webcam Fun
20Speech Detection
21Geolocation
22Follow Along Link Highlighter
23Speech Synthesis
24Sticky Nav
25Event Capture, Propagation, Bubbling and Once
26Stripe Follow Along Nav
27Click and Drag
28Video Speed Controller
29Countdown Timer
30Whack A Mole
About
rabbittee.github.io/js30-react/#/
Resources
Readme
Activity
Custom properties
Stars
0 stars
Watchers
3 watching
Forks
0 forks
Report repository
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Used by
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, '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('^' + ".*" + '

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使用說明書
JavaScript30 Sample 連結
DayTopic
01JavaScript Drum Kit
02JS and CSS Clock
03CSS Variables
04Array Cardio Day 1
05Flex Panel Gallery
06Type Ahead
07Array Cardio Day 2
08Fun with HTML5 Canvas
09Dev Tools Domination
10Hold Shift and Check Checkboxes
11Custom Video Player
12Key Sequence Detection
13Slide in on Scroll
14JavaScript References VS Copying
15LocalStorage
16Mouse Move Shadow
17Sort Without Articles
18Adding Up Times with Reduce
19Webcam Fun
20Speech Detection
21Geolocation
22Follow Along Link Highlighter
23Speech Synthesis
24Sticky Nav
25Event Capture, Propagation, Bubbling and Once
26Stripe Follow Along Nav
27Click and Drag
28Video Speed Controller
29Countdown Timer
30Whack A Mole
About
rabbittee.github.io/js30-react/#/
Resources
Readme
Activity
Custom properties
Stars
0 stars
Watchers
3 watching
Forks
0 forks
Report repository
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Used by
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, '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('^' + ".*" + '

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使用說明書
JavaScript30 Sample 連結
DayTopic
01JavaScript Drum Kit
02JS and CSS Clock
03CSS Variables
04Array Cardio Day 1
05Flex Panel Gallery
06Type Ahead
07Array Cardio Day 2
08Fun with HTML5 Canvas
09Dev Tools Domination
10Hold Shift and Check Checkboxes
11Custom Video Player
12Key Sequence Detection
13Slide in on Scroll
14JavaScript References VS Copying
15LocalStorage
16Mouse Move Shadow
17Sort Without Articles
18Adding Up Times with Reduce
19Webcam Fun
20Speech Detection
21Geolocation
22Follow Along Link Highlighter
23Speech Synthesis
24Sticky Nav
25Event Capture, Propagation, Bubbling and Once
26Stripe Follow Along Nav
27Click and Drag
28Video Speed Controller
29Countdown Timer
30Whack A Mole
About
rabbittee.github.io/js30-react/#/
Resources
Readme
Activity
Custom properties
Stars
0 stars
Watchers
3 watching
Forks
0 forks
Report repository
Releases
Packages
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" + '

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使用說明書
JavaScript30 Sample 連結
DayTopic
01JavaScript Drum Kit
02JS and CSS Clock
03CSS Variables
04Array Cardio Day 1
05Flex Panel Gallery
06Type Ahead
07Array Cardio Day 2
08Fun with HTML5 Canvas
09Dev Tools Domination
10Hold Shift and Check Checkboxes
11Custom Video Player
12Key Sequence Detection
13Slide in on Scroll
14JavaScript References VS Copying
15LocalStorage
16Mouse Move Shadow
17Sort Without Articles
18Adding Up Times with Reduce
19Webcam Fun
20Speech Detection
21Geolocation
22Follow Along Link Highlighter
23Speech Synthesis
24Sticky Nav
25Event Capture, Propagation, Bubbling and Once
26Stripe Follow Along Nav
27Click and Drag
28Video Speed Controller
29Countdown Timer
30Whack A Mole
About
rabbittee.github.io/js30-react/#/
Resources
Readme
Activity
Custom properties
Stars
0 stars
Watchers
3 watching
Forks
0 forks
Report repository
Releases
Packages
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('^' + ".*" + '

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BranchesTags
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使用說明書
JavaScript30 Sample 連結
DayTopic
01JavaScript Drum Kit
02JS and CSS Clock
03CSS Variables
04Array Cardio Day 1
05Flex Panel Gallery
06Type Ahead
07Array Cardio Day 2
08Fun with HTML5 Canvas
09Dev Tools Domination
10Hold Shift and Check Checkboxes
11Custom Video Player
12Key Sequence Detection
13Slide in on Scroll
14JavaScript References VS Copying
15LocalStorage
16Mouse Move Shadow
17Sort Without Articles
18Adding Up Times with Reduce
19Webcam Fun
20Speech Detection
21Geolocation
22Follow Along Link Highlighter
23Speech Synthesis
24Sticky Nav
25Event Capture, Propagation, Bubbling and Once
26Stripe Follow Along Nav
27Click and Drag
28Video Speed Controller
29Countdown Timer
30Whack A Mole
About
rabbittee.github.io/js30-react/#/
Resources
Readme
Activity
Custom properties
Stars
0 stars
Watchers
3 watching
Forks
0 forks
Report repository
Releases
Packages
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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使用說明書
JavaScript30 Sample 連結
DayTopic
01JavaScript Drum Kit
02JS and CSS Clock
03CSS Variables
04Array Cardio Day 1
05Flex Panel Gallery
06Type Ahead
07Array Cardio Day 2
08Fun with HTML5 Canvas
09Dev Tools Domination
10Hold Shift and Check Checkboxes
11Custom Video Player
12Key Sequence Detection
13Slide in on Scroll
14JavaScript References VS Copying
15LocalStorage
16Mouse Move Shadow
17Sort Without Articles
18Adding Up Times with Reduce
19Webcam Fun
20Speech Detection
21Geolocation
22Follow Along Link Highlighter
23Speech Synthesis
24Sticky Nav
25Event Capture, Propagation, Bubbling and Once
26Stripe Follow Along Nav
27Click and Drag
28Video Speed Controller
29Countdown Timer
30Whack A Mole
About
rabbittee.github.io/js30-react/#/
Resources
Readme
Activity
Custom properties
Stars
0 stars
Watchers
3 watching
Forks
0 forks
Report repository
Releases
Packages
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); }
})();
})();

Skip to content
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使用說明書
JavaScript30 Sample 連結
DayTopic
01JavaScript Drum Kit
02JS and CSS Clock
03CSS Variables
04Array Cardio Day 1
05Flex Panel Gallery
06Type Ahead
07Array Cardio Day 2
08Fun with HTML5 Canvas
09Dev Tools Domination
10Hold Shift and Check Checkboxes
11Custom Video Player
12Key Sequence Detection
13Slide in on Scroll
14JavaScript References VS Copying
15LocalStorage
16Mouse Move Shadow
17Sort Without Articles
18Adding Up Times with Reduce
19Webcam Fun
20Speech Detection
21Geolocation
22Follow Along Link Highlighter
23Speech Synthesis
24Sticky Nav
25Event Capture, Propagation, Bubbling and Once
26Stripe Follow Along Nav
27Click and Drag
28Video Speed Controller
29Countdown Timer
30Whack A Mole
About
rabbittee.github.io/js30-react/#/
Resources
Readme
Activity
Custom properties
Stars
0 stars
Watchers
3 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
Contributors
Languages