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postcss-functions

PostCSS plugin for exposing JavaScript functions.

Installation

npminstall--save-devpostcsspostcss-functions

Usage

importfsfrom'fs';importpostcssfrom'postcss';importfunctionsfrom'postcss-functions';constoptions={//options};constcss=fs.readFileSync('input.css','utf8');postcss().use(functions(options)).process(css).then((result)=>{constoutput=result.css;});

Example of a function call:

body {
prop:foobar();
}

Options

functions

Type: Object

An object containing functions. The function name will correspond with the object key.

Example:

importpostcssFunctionsfrom'postcss-functions';import{fromString,fromRgb}from'css-color-converter';
functiondarken(value,frac){constdarken=1-parseFloat(frac);constrgba=fromString(value).toRgbaArray();constr=rgba[0]*darken;constg=rgba[1]*darken;constb=rgba[2]*darken;returnfromRgb([r,g,b]).toHexString();}
postcssFunctions({functions: { darken }});
.foo {
/* make 10% darker */color:darken(blue,0.1);
}

Hey, what happened to glob?

Versions prior to 4.0.0 had a globbing feature built in, but I've since decided to remove this feature from postcss-functions. This means one less dependency and a smaller package size. For people still interested in this feature, you are free to pair postcss-functions with the globbing library of your choice and pass the imported JavaScript files to the functions option as described above.

About

PostCSS plugin for exposing JavaScript functions

Resources

Readme
MIT license
Activity

Stars

215 stars

Watchers

2 watching

Forks

17 forks
Report repository

Releases

Packages

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" + '

Skip to content
BranchesTags
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postcss-functions
PostCSS plugin for exposing JavaScript functions.
Installation
npminstall--save-devpostcsspostcss-functions
Usage
importfsfrom'fs';importpostcssfrom'postcss';importfunctionsfrom'postcss-functions';constoptions={//options};constcss=fs.readFileSync('input.css','utf8');postcss().use(functions(options)).process(css).then((result)=>{constoutput=result.css;});
Example of a function call:
body {
prop:foobar();
}
Options
functions
Type: Object
An object containing functions. The function name will correspond with the object key.
Example:
importpostcssFunctionsfrom'postcss-functions';import{fromString,fromRgb}from'css-color-converter';
functiondarken(value,frac){constdarken=1-parseFloat(frac);constrgba=fromString(value).toRgbaArray();constr=rgba[0]*darken;constg=rgba[1]*darken;constb=rgba[2]*darken;returnfromRgb([r,g,b]).toHexString();}
postcssFunctions({functions: { darken }});
.foo {
/* make 10% darker */color:darken(blue,0.1);
}
Hey, what happened to glob?
Versions prior to 4.0.0 had a globbing feature built in, but I've since decided to remove this feature from postcss-functions. This means one less dependency and a smaller package size. For people still interested in this feature, you are free to pair postcss-functions with the globbing library of your choice and pass the imported JavaScript files to the functions option as described above.
About
PostCSS plugin for exposing JavaScript functions
Resources
Readme
MIT license
Activity
Stars
215 stars
Watchers
2 watching
Forks
17 forks
Report repository
Releases
Packages
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
Repository files navigation
postcss-functions
PostCSS plugin for exposing JavaScript functions.
Installation
npminstall--save-devpostcsspostcss-functions
Usage
importfsfrom'fs';importpostcssfrom'postcss';importfunctionsfrom'postcss-functions';constoptions={//options};constcss=fs.readFileSync('input.css','utf8');postcss().use(functions(options)).process(css).then((result)=>{constoutput=result.css;});
Example of a function call:
body {
prop:foobar();
}
Options
functions
Type: Object
An object containing functions. The function name will correspond with the object key.
Example:
importpostcssFunctionsfrom'postcss-functions';import{fromString,fromRgb}from'css-color-converter';
functiondarken(value,frac){constdarken=1-parseFloat(frac);constrgba=fromString(value).toRgbaArray();constr=rgba[0]*darken;constg=rgba[1]*darken;constb=rgba[2]*darken;returnfromRgb([r,g,b]).toHexString();}
postcssFunctions({functions: { darken }});
.foo {
/* make 10% darker */color:darken(blue,0.1);
}
Hey, what happened to glob?
Versions prior to 4.0.0 had a globbing feature built in, but I've since decided to remove this feature from postcss-functions. This means one less dependency and a smaller package size. For people still interested in this feature, you are free to pair postcss-functions with the globbing library of your choice and pass the imported JavaScript files to the functions option as described above.
About
PostCSS plugin for exposing JavaScript functions
Resources
Readme
MIT license
Activity
Stars
215 stars
Watchers
2 watching
Forks
17 forks
Report repository
Releases
Packages
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
Repository files navigation
postcss-functions
PostCSS plugin for exposing JavaScript functions.
Installation
npminstall--save-devpostcsspostcss-functions
Usage
importfsfrom'fs';importpostcssfrom'postcss';importfunctionsfrom'postcss-functions';constoptions={//options};constcss=fs.readFileSync('input.css','utf8');postcss().use(functions(options)).process(css).then((result)=>{constoutput=result.css;});
Example of a function call:
body {
prop:foobar();
}
Options
functions
Type: Object
An object containing functions. The function name will correspond with the object key.
Example:
importpostcssFunctionsfrom'postcss-functions';import{fromString,fromRgb}from'css-color-converter';
functiondarken(value,frac){constdarken=1-parseFloat(frac);constrgba=fromString(value).toRgbaArray();constr=rgba[0]*darken;constg=rgba[1]*darken;constb=rgba[2]*darken;returnfromRgb([r,g,b]).toHexString();}
postcssFunctions({functions: { darken }});
.foo {
/* make 10% darker */color:darken(blue,0.1);
}
Hey, what happened to glob?
Versions prior to 4.0.0 had a globbing feature built in, but I've since decided to remove this feature from postcss-functions. This means one less dependency and a smaller package size. For people still interested in this feature, you are free to pair postcss-functions with the globbing library of your choice and pass the imported JavaScript files to the functions option as described above.
About
PostCSS plugin for exposing JavaScript functions
Resources
Readme
MIT license
Activity
Stars
215 stars
Watchers
2 watching
Forks
17 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" + '

Skip to content
BranchesTags
Repository files navigation
postcss-functions
PostCSS plugin for exposing JavaScript functions.
Installation
npminstall--save-devpostcsspostcss-functions
Usage
importfsfrom'fs';importpostcssfrom'postcss';importfunctionsfrom'postcss-functions';constoptions={//options};constcss=fs.readFileSync('input.css','utf8');postcss().use(functions(options)).process(css).then((result)=>{constoutput=result.css;});
Example of a function call:
body {
prop:foobar();
}
Options
functions
Type: Object
An object containing functions. The function name will correspond with the object key.
Example:
importpostcssFunctionsfrom'postcss-functions';import{fromString,fromRgb}from'css-color-converter';
functiondarken(value,frac){constdarken=1-parseFloat(frac);constrgba=fromString(value).toRgbaArray();constr=rgba[0]*darken;constg=rgba[1]*darken;constb=rgba[2]*darken;returnfromRgb([r,g,b]).toHexString();}
postcssFunctions({functions: { darken }});
.foo {
/* make 10% darker */color:darken(blue,0.1);
}
Hey, what happened to glob?
Versions prior to 4.0.0 had a globbing feature built in, but I've since decided to remove this feature from postcss-functions. This means one less dependency and a smaller package size. For people still interested in this feature, you are free to pair postcss-functions with the globbing library of your choice and pass the imported JavaScript files to the functions option as described above.
About
PostCSS plugin for exposing JavaScript functions
Resources
Readme
MIT license
Activity
Stars
215 stars
Watchers
2 watching
Forks
17 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('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
postcss-functions
PostCSS plugin for exposing JavaScript functions.
Installation
npminstall--save-devpostcsspostcss-functions
Usage
importfsfrom'fs';importpostcssfrom'postcss';importfunctionsfrom'postcss-functions';constoptions={//options};constcss=fs.readFileSync('input.css','utf8');postcss().use(functions(options)).process(css).then((result)=>{constoutput=result.css;});
Example of a function call:
body {
prop:foobar();
}
Options
functions
Type: Object
An object containing functions. The function name will correspond with the object key.
Example:
importpostcssFunctionsfrom'postcss-functions';import{fromString,fromRgb}from'css-color-converter';
functiondarken(value,frac){constdarken=1-parseFloat(frac);constrgba=fromString(value).toRgbaArray();constr=rgba[0]*darken;constg=rgba[1]*darken;constb=rgba[2]*darken;returnfromRgb([r,g,b]).toHexString();}
postcssFunctions({functions: { darken }});
.foo {
/* make 10% darker */color:darken(blue,0.1);
}
Hey, what happened to glob?
Versions prior to 4.0.0 had a globbing feature built in, but I've since decided to remove this feature from postcss-functions. This means one less dependency and a smaller package size. For people still interested in this feature, you are free to pair postcss-functions with the globbing library of your choice and pass the imported JavaScript files to the functions option as described above.
About
PostCSS plugin for exposing JavaScript functions
Resources
Readme
MIT license
Activity
Stars
215 stars
Watchers
2 watching
Forks
17 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
Repository files navigation
postcss-functions
PostCSS plugin for exposing JavaScript functions.
Installation
npminstall--save-devpostcsspostcss-functions
Usage
importfsfrom'fs';importpostcssfrom'postcss';importfunctionsfrom'postcss-functions';constoptions={//options};constcss=fs.readFileSync('input.css','utf8');postcss().use(functions(options)).process(css).then((result)=>{constoutput=result.css;});
Example of a function call:
body {
prop:foobar();
}
Options
functions
Type: Object
An object containing functions. The function name will correspond with the object key.
Example:
importpostcssFunctionsfrom'postcss-functions';import{fromString,fromRgb}from'css-color-converter';
functiondarken(value,frac){constdarken=1-parseFloat(frac);constrgba=fromString(value).toRgbaArray();constr=rgba[0]*darken;constg=rgba[1]*darken;constb=rgba[2]*darken;returnfromRgb([r,g,b]).toHexString();}
postcssFunctions({functions: { darken }});
.foo {
/* make 10% darker */color:darken(blue,0.1);
}
Hey, what happened to glob?
Versions prior to 4.0.0 had a globbing feature built in, but I've since decided to remove this feature from postcss-functions. This means one less dependency and a smaller package size. For people still interested in this feature, you are free to pair postcss-functions with the globbing library of your choice and pass the imported JavaScript files to the functions option as described above.
About
PostCSS plugin for exposing JavaScript functions
Resources
Readme
MIT license
Activity
Stars
215 stars
Watchers
2 watching
Forks
17 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); }
})();
})();

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postcss-functions
PostCSS plugin for exposing JavaScript functions.
Installation
npminstall--save-devpostcsspostcss-functions
Usage
importfsfrom'fs';importpostcssfrom'postcss';importfunctionsfrom'postcss-functions';constoptions={//options};constcss=fs.readFileSync('input.css','utf8');postcss().use(functions(options)).process(css).then((result)=>{constoutput=result.css;});
Example of a function call:
body {
prop:foobar();
}
Options
functions
Type: Object
An object containing functions. The function name will correspond with the object key.
Example:
importpostcssFunctionsfrom'postcss-functions';import{fromString,fromRgb}from'css-color-converter';
functiondarken(value,frac){constdarken=1-parseFloat(frac);constrgba=fromString(value).toRgbaArray();constr=rgba[0]*darken;constg=rgba[1]*darken;constb=rgba[2]*darken;returnfromRgb([r,g,b]).toHexString();}
postcssFunctions({functions: { darken }});
.foo {
/* make 10% darker */color:darken(blue,0.1);
}
Hey, what happened to glob?
Versions prior to 4.0.0 had a globbing feature built in, but I've since decided to remove this feature from postcss-functions. This means one less dependency and a smaller package size. For people still interested in this feature, you are free to pair postcss-functions with the globbing library of your choice and pass the imported JavaScript files to the functions option as described above.
About
PostCSS plugin for exposing JavaScript functions
Resources
Readme
MIT license
Activity
Stars
215 stars
Watchers
2 watching
Forks
17 forks
Report repository
Releases
Packages
Used by
Contributors
Languages