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Express Logo

Fast, unopinionated, minimalist web framework for node.

NPM VersionBuild StatusCoverage StatusGittip

varexpress=require('express')varapp=express()app.get('/',function(req,res){res.send('Hello World')})app.listen(3000)

PROTIP Be sure to read Migrating from 3.x to 4.x as well as New features in 4.x.

Installation

$ npm install express

Quick Start

The quickest way to get started with express is to utilize the executable express(1) to generate an application as shown below:

Install the executable. The executable's major version will match Express's:

$ npm install -g express-generator@4

Create the app:

$ express /tmp/foo &&cd /tmp/foo

Install dependencies:

$ npm install

Start the server:

$ npm start

Features

  • Robust routing
  • HTTP helpers (redirection, caching, etc)
  • View system supporting 14+ template engines
  • Content negotiation
  • Focus on high performance
  • Executable for generating applications quickly
  • High test coverage

Philosophy

The Express philosophy is to provide small, robust tooling for HTTP servers, making it a great solution for single page applications, web sites, hybrids, or public HTTP APIs.

Express does not force you to use any specific ORM or template engine. With support for over 14 template engines via Consolidate.js, you can quickly craft your perfect framework.

More Information

Viewing Examples

Clone the Express repo, then install the dev dependencies to install all the example / test suite dependencies:

$ git clone git://github.com/strongloop/express.git --depth 1
$ cd express
$ npm install

Then run whichever example you want:

$ node examples/content-negotiation

You can also view live examples here:

Running Tests

To run the test suite, first invoke the following command within the repo, installing the development dependencies:

$ npm install

Then run the tests:

$ npm test

Contributors

License

MIT

About

Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple

expressjs.com

Resources

Readme
MIT license

Contributing

Contributing
Activity

Stars

0 stars

Watchers

1 watching

Forks

0 forks
Report repository

Releases

Packages

Contributors

, '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
Repository files navigation
Express Logo
Fast, unopinionated, minimalist web framework for node.
NPM VersionBuild StatusCoverage StatusGittip
varexpress=require('express')varapp=express()app.get('/',function(req,res){res.send('Hello World')})app.listen(3000)
PROTIP Be sure to read Migrating from 3.x to 4.x as well as New features in 4.x.
Installation
$ npm install express
Quick Start
The quickest way to get started with express is to utilize the executable express(1) to generate an application as shown below:
Install the executable. The executable's major version will match Express's:
$ npm install -g express-generator@4
Create the app:
$ express /tmp/foo &&cd /tmp/foo
Install dependencies:
$ npm install
Start the server:
$ npm start
Features
  • Robust routing
  • HTTP helpers (redirection, caching, etc)
  • View system supporting 14+ template engines
  • Content negotiation
  • Focus on high performance
  • Executable for generating applications quickly
  • High test coverage
Philosophy
The Express philosophy is to provide small, robust tooling for HTTP servers, making
it a great solution for single page applications, web sites, hybrids, or public
HTTP APIs.
Express does not force you to use any specific ORM or template engine. With support for over
14 template engines via Consolidate.js,
you can quickly craft your perfect framework.
More Information
Viewing Examples
Clone the Express repo, then install the dev dependencies to install all the example / test suite dependencies:
$ git clone git://github.com/strongloop/express.git --depth 1
$ cd express
$ npm install
Then run whichever example you want:
$ node examples/content-negotiation

You can also view live examples here:
Running Tests
To run the test suite, first invoke the following command within the repo, installing the development dependencies:
$ npm install
Then run the tests:
$ npm test
Contributors
License
MIT
About
Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple
expressjs.com
Resources
Readme
MIT license
Contributing
Contributing
Activity
Stars
0 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors

, '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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Express Logo
Fast, unopinionated, minimalist web framework for node.
NPM VersionBuild StatusCoverage StatusGittip
varexpress=require('express')varapp=express()app.get('/',function(req,res){res.send('Hello World')})app.listen(3000)
PROTIP Be sure to read Migrating from 3.x to 4.x as well as New features in 4.x.
Installation
$ npm install express
Quick Start
The quickest way to get started with express is to utilize the executable express(1) to generate an application as shown below:
Install the executable. The executable's major version will match Express's:
$ npm install -g express-generator@4
Create the app:
$ express /tmp/foo &&cd /tmp/foo
Install dependencies:
$ npm install
Start the server:
$ npm start
Features
  • Robust routing
  • HTTP helpers (redirection, caching, etc)
  • View system supporting 14+ template engines
  • Content negotiation
  • Focus on high performance
  • Executable for generating applications quickly
  • High test coverage
Philosophy
The Express philosophy is to provide small, robust tooling for HTTP servers, making
it a great solution for single page applications, web sites, hybrids, or public
HTTP APIs.
Express does not force you to use any specific ORM or template engine. With support for over
14 template engines via Consolidate.js,
you can quickly craft your perfect framework.
More Information
Viewing Examples
Clone the Express repo, then install the dev dependencies to install all the example / test suite dependencies:
$ git clone git://github.com/strongloop/express.git --depth 1
$ cd express
$ npm install
Then run whichever example you want:
$ node examples/content-negotiation

You can also view live examples here:
Running Tests
To run the test suite, first invoke the following command within the repo, installing the development dependencies:
$ npm install
Then run the tests:
$ npm test
Contributors
License
MIT
About
Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple
expressjs.com
Resources
Readme
MIT license
Contributing
Contributing
Activity
Stars
0 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors

, '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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Express Logo
Fast, unopinionated, minimalist web framework for node.
NPM VersionBuild StatusCoverage StatusGittip
varexpress=require('express')varapp=express()app.get('/',function(req,res){res.send('Hello World')})app.listen(3000)
PROTIP Be sure to read Migrating from 3.x to 4.x as well as New features in 4.x.
Installation
$ npm install express
Quick Start
The quickest way to get started with express is to utilize the executable express(1) to generate an application as shown below:
Install the executable. The executable's major version will match Express's:
$ npm install -g express-generator@4
Create the app:
$ express /tmp/foo &&cd /tmp/foo
Install dependencies:
$ npm install
Start the server:
$ npm start
Features
  • Robust routing
  • HTTP helpers (redirection, caching, etc)
  • View system supporting 14+ template engines
  • Content negotiation
  • Focus on high performance
  • Executable for generating applications quickly
  • High test coverage
Philosophy
The Express philosophy is to provide small, robust tooling for HTTP servers, making
it a great solution for single page applications, web sites, hybrids, or public
HTTP APIs.
Express does not force you to use any specific ORM or template engine. With support for over
14 template engines via Consolidate.js,
you can quickly craft your perfect framework.
More Information
Viewing Examples
Clone the Express repo, then install the dev dependencies to install all the example / test suite dependencies:
$ git clone git://github.com/strongloop/express.git --depth 1
$ cd express
$ npm install
Then run whichever example you want:
$ node examples/content-negotiation

You can also view live examples here:
Running Tests
To run the test suite, first invoke the following command within the repo, installing the development dependencies:
$ npm install
Then run the tests:
$ npm test
Contributors
License
MIT
About
Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple
expressjs.com
Resources
Readme
MIT license
Contributing
Contributing
Activity
Stars
0 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors

, '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
Express Logo
Fast, unopinionated, minimalist web framework for node.
NPM VersionBuild StatusCoverage StatusGittip
varexpress=require('express')varapp=express()app.get('/',function(req,res){res.send('Hello World')})app.listen(3000)
PROTIP Be sure to read Migrating from 3.x to 4.x as well as New features in 4.x.
Installation
$ npm install express
Quick Start
The quickest way to get started with express is to utilize the executable express(1) to generate an application as shown below:
Install the executable. The executable's major version will match Express's:
$ npm install -g express-generator@4
Create the app:
$ express /tmp/foo &&cd /tmp/foo
Install dependencies:
$ npm install
Start the server:
$ npm start
Features
  • Robust routing
  • HTTP helpers (redirection, caching, etc)
  • View system supporting 14+ template engines
  • Content negotiation
  • Focus on high performance
  • Executable for generating applications quickly
  • High test coverage
Philosophy
The Express philosophy is to provide small, robust tooling for HTTP servers, making
it a great solution for single page applications, web sites, hybrids, or public
HTTP APIs.
Express does not force you to use any specific ORM or template engine. With support for over
14 template engines via Consolidate.js,
you can quickly craft your perfect framework.
More Information
Viewing Examples
Clone the Express repo, then install the dev dependencies to install all the example / test suite dependencies:
$ git clone git://github.com/strongloop/express.git --depth 1
$ cd express
$ npm install
Then run whichever example you want:
$ node examples/content-negotiation

You can also view live examples here:
Running Tests
To run the test suite, first invoke the following command within the repo, installing the development dependencies:
$ npm install
Then run the tests:
$ npm test
Contributors
License
MIT
About
Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple
expressjs.com
Resources
Readme
MIT license
Contributing
Contributing
Activity
Stars
0 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors

, '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
Express Logo
Fast, unopinionated, minimalist web framework for node.
NPM VersionBuild StatusCoverage StatusGittip
varexpress=require('express')varapp=express()app.get('/',function(req,res){res.send('Hello World')})app.listen(3000)
PROTIP Be sure to read Migrating from 3.x to 4.x as well as New features in 4.x.
Installation
$ npm install express
Quick Start
The quickest way to get started with express is to utilize the executable express(1) to generate an application as shown below:
Install the executable. The executable's major version will match Express's:
$ npm install -g express-generator@4
Create the app:
$ express /tmp/foo &&cd /tmp/foo
Install dependencies:
$ npm install
Start the server:
$ npm start
Features
  • Robust routing
  • HTTP helpers (redirection, caching, etc)
  • View system supporting 14+ template engines
  • Content negotiation
  • Focus on high performance
  • Executable for generating applications quickly
  • High test coverage
Philosophy
The Express philosophy is to provide small, robust tooling for HTTP servers, making
it a great solution for single page applications, web sites, hybrids, or public
HTTP APIs.
Express does not force you to use any specific ORM or template engine. With support for over
14 template engines via Consolidate.js,
you can quickly craft your perfect framework.
More Information
Viewing Examples
Clone the Express repo, then install the dev dependencies to install all the example / test suite dependencies:
$ git clone git://github.com/strongloop/express.git --depth 1
$ cd express
$ npm install
Then run whichever example you want:
$ node examples/content-negotiation

You can also view live examples here:
Running Tests
To run the test suite, first invoke the following command within the repo, installing the development dependencies:
$ npm install
Then run the tests:
$ npm test
Contributors
License
MIT
About
Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple
expressjs.com
Resources
Readme
MIT license
Contributing
Contributing
Activity
Stars
0 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors

, '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
Express Logo
Fast, unopinionated, minimalist web framework for node.
NPM VersionBuild StatusCoverage StatusGittip
varexpress=require('express')varapp=express()app.get('/',function(req,res){res.send('Hello World')})app.listen(3000)
PROTIP Be sure to read Migrating from 3.x to 4.x as well as New features in 4.x.
Installation
$ npm install express
Quick Start
The quickest way to get started with express is to utilize the executable express(1) to generate an application as shown below:
Install the executable. The executable's major version will match Express's:
$ npm install -g express-generator@4
Create the app:
$ express /tmp/foo &&cd /tmp/foo
Install dependencies:
$ npm install
Start the server:
$ npm start
Features
  • Robust routing
  • HTTP helpers (redirection, caching, etc)
  • View system supporting 14+ template engines
  • Content negotiation
  • Focus on high performance
  • Executable for generating applications quickly
  • High test coverage
Philosophy
The Express philosophy is to provide small, robust tooling for HTTP servers, making
it a great solution for single page applications, web sites, hybrids, or public
HTTP APIs.
Express does not force you to use any specific ORM or template engine. With support for over
14 template engines via Consolidate.js,
you can quickly craft your perfect framework.
More Information
Viewing Examples
Clone the Express repo, then install the dev dependencies to install all the example / test suite dependencies:
$ git clone git://github.com/strongloop/express.git --depth 1
$ cd express
$ npm install
Then run whichever example you want:
$ node examples/content-negotiation

You can also view live examples here:
Running Tests
To run the test suite, first invoke the following command within the repo, installing the development dependencies:
$ npm install
Then run the tests:
$ npm test
Contributors
License
MIT
About
Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple
expressjs.com
Resources
Readme
MIT license
Contributing
Contributing
Activity
Stars
0 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors

, '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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Express Logo
Fast, unopinionated, minimalist web framework for node.
NPM VersionBuild StatusCoverage StatusGittip
varexpress=require('express')varapp=express()app.get('/',function(req,res){res.send('Hello World')})app.listen(3000)
PROTIP Be sure to read Migrating from 3.x to 4.x as well as New features in 4.x.
Installation
$ npm install express
Quick Start
The quickest way to get started with express is to utilize the executable express(1) to generate an application as shown below:
Install the executable. The executable's major version will match Express's:
$ npm install -g express-generator@4
Create the app:
$ express /tmp/foo &&cd /tmp/foo
Install dependencies:
$ npm install
Start the server:
$ npm start
Features
  • Robust routing
  • HTTP helpers (redirection, caching, etc)
  • View system supporting 14+ template engines
  • Content negotiation
  • Focus on high performance
  • Executable for generating applications quickly
  • High test coverage
Philosophy
The Express philosophy is to provide small, robust tooling for HTTP servers, making
it a great solution for single page applications, web sites, hybrids, or public
HTTP APIs.
Express does not force you to use any specific ORM or template engine. With support for over
14 template engines via Consolidate.js,
you can quickly craft your perfect framework.
More Information
Viewing Examples
Clone the Express repo, then install the dev dependencies to install all the example / test suite dependencies:
$ git clone git://github.com/strongloop/express.git --depth 1
$ cd express
$ npm install
Then run whichever example you want:
$ node examples/content-negotiation

You can also view live examples here:
Running Tests
To run the test suite, first invoke the following command within the repo, installing the development dependencies:
$ npm install
Then run the tests:
$ npm test
Contributors
License
MIT
About
Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple
expressjs.com
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