https://developer.mozilla.org/en-US/docs/Web/JavaScript
JavaScript | MDN
JavaScript (JS) is a lightweight interpreted (or just-in-time compiled) programming language with first-class functions. While it is most well-known as the...
javascriptmdn
https://developer.mozilla.org/en-US/docs/Web/HTML
HTML: HyperText Markup Language | MDN
HTML (HyperText Markup Language) is the most basic building block of the Web. It defines the meaning and structure of web content. Other technologies besides...
hypertext markup languagehtmlmdn
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules
JavaScript modules - JavaScript | MDN
This guide gives you all you need to get started with JavaScript module syntax.
javascript modulesmdn
https://developer.mozilla.org/en-US/
MDN Web Docs
The MDN Web Docs site provides information about Open Web technologies including HTML, CSS, and APIs for both Web sites and progressive web apps.
mdnwebdocs
https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API
Canvas API - Web APIs | MDN
canvas apiweb apismdn
https://developer.mozilla.org/en-US/docs/Web/CSS
CSS: Cascading Style Sheets | MDN
Cascading Style Sheets (CSS) is a stylesheet language used to describe the presentation of a document written in HTML or XML (including XML dialects such as...
cascading style sheetscssmdn
https://developer.mozilla.org/en-US/docs/Web/API/WebGL_API
WebGL: 2D and 3D graphics for the web - Web APIs | MDN
WebGL (Web Graphics Library) is a JavaScript API for rendering high-performance interactive 3D and 2D graphics within any compatible web browser without the...
for the webwebglgraphicsapismdn
https://developer.mozilla.org/en-US/docs/Web/API/Web_Audio_API
Web Audio API - Web APIs | MDN
The Web Audio API provides a powerful and versatile system for controlling audio on the Web, allowing developers to choose audio sources, add effects to audio,...
web audio apiapismdn
https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Using_web_workers
Using Web Workers - Web APIs | MDN
Web Workers are a simple means for web content to run scripts in background threads. The worker thread can perform tasks without interfering with the user...
web workersusingapismdn
https://developer.mozilla.org/en-US/docs/Web/API/WebRTC_API
WebRTC API - Web APIs | MDN
WebRTC (Web Real-Time Communication) is a technology that enables Web applications and sites to capture and optionally stream audio and/or video media, as well...
api webwebrtcapismdn
https://developer.mozilla.org/en-US/docs/Web/HTTP/Guides/CSP
Content Security Policy (CSP) - HTTP | MDN
Content Security Policy (CSP) is a feature that helps to prevent or minimize the risk of certain types of security threats. It consists of a series of...
content security policycsphttpmdn
https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API
Fetch API - Web APIs | MDN
The Fetch API provides an interface for fetching resources (including across the network). It is a more powerful and flexible replacement for XMLHttpRequest.
fetch apiweb apismdn
https://developer.mozilla.org/en-US/docs/Web/API/View_Transition_API
View Transition API - Web APIs | MDN
The View Transition API provides a mechanism for easily creating animated transitions between different website and element views. This includes animating...
api webviewtransitionapismdn
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise
Promise - JavaScript | MDN
The Promise object represents the eventual completion (or failure) of an asynchronous operation and its resulting value.
promisejavascriptmdn
https://developer.mozilla.org/en-US/docs/Web/SVG
SVG: Scalable Vector Graphics | MDN
Scalable Vector Graphics (SVG) is an XML-based markup language for describing two-dimensional based vector graphics.
scalable vector graphicssvgmdn
https://developer.mozilla.org/ja/
MDN Web Docs
The MDN Web Docs site provides information about Open Web technologies including HTML, CSS, and APIs for both Web sites and progressive web apps.
mdnwebdocs
https://developer.mozilla.org/en-US/docs/Web/API/Request
Request - Web APIs | MDN
The Request interface of the Fetch API represents a resource request.
web apisrequestmdn
https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API
WebSocket API (WebSockets) - Web APIs | MDN
The WebSocket API makes it possible to open a two-way interactive communication session between the user's browser and a server. With this API, you can send...
websocket apiwebsocketsapismdn
https://developer.mozilla.org/en-US/docs/Glossary/HTML5
HTML5 - Glossary | MDN
The term HTML5 is essentially a buzzword that refers to a set of modern web technologies. This includes the HTML Living Standard, along with JavaScript APIs to...
glossarymdn
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map
Map - JavaScript | MDN
The Map object holds key-value pairs and remembers the original insertion order of the keys. Any value (both objects and primitive values) may be used as...
mapjavascriptmdn
https://developer.mozilla.org/en-US/docs/Web
Web technology for developers | MDN
The open Web presents incredible opportunities for developers. To take full advantage of these technologies, you need to know how to use them. Below you'll...
web technologyfor developersmdn
https://developer.mozilla.org/en-US/docs/Web/API/Web_Crypto_API
Web Crypto API - Web APIs | MDN
The Web Crypto API is an interface allowing a script to use cryptographic primitives in order to build systems using cryptography.
web crypto apiapismdn
https://developer.mozilla.org/en-US/docs/Web/API/Window/postMessage
Window: postMessage() method - Web APIs | MDN
The window.postMessage() method safely enables cross-origin communication between Window objects; e.g., between a page and a pop-up that it spawned, or between...
web apiswindowpostmessagemethodmdn
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON
JSON - JavaScript | MDN
The JSON namespace object contains static methods for parsing values from and converting values to JavaScript Object Notation (JSON).
jsonjavascriptmdn
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp
RegExp - JavaScript | MDN
The RegExp object is used for matching text with a pattern.
regexpjavascriptmdn
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Temporal
Temporal - JavaScript | MDN
The Temporal object enables date and time management in various scenarios, including built-in time zone and calendar representation, wall-clock time...
temporaljavascriptmdn
https://developer.mozilla.org/en-US/docs/Web/HTTP/Guides/CORS
Cross-Origin Resource Sharing (CORS) - HTTP | MDN
Cross-Origin Resource Sharing (CORS) is an HTTP-header based mechanism that allows a server to indicate any origins (domain, scheme, or port) other than its...
cross originresource sharingcorshttpmdn
https://github.com/mdn
MDN Web Docs · GitHub
Data and tools related to MDN Web Docs (formerly Mozilla Developer Network, formerly Mozilla Developer Center...) - MDN Web Docs
mdn web docsgithub
https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API/Using_Fetch
Using the Fetch API - Web APIs | MDN
The Fetch API provides a JavaScript interface for making HTTP requests and processing the responses.
fetch apiweb apisusingmdn
https://developer.mozilla.org/en-US/docs/Web/API
Web APIs | MDN
When writing code for the Web, there are a large number of Web APIs available. Below is a list of all the APIs and interfaces (object types) that you may be...
web apismdn
https://developer.mozilla.org/en-US/docs/Web/Progressive_web_apps
Progressive web apps | MDN
A progressive web app (PWA) is an app that's built using web platform technologies, but that provides a user experience like that of a platform-specific app.
progressive web appsmdn
https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements/input/date
input type="date" HTML attribute value - HTML | MDN
type dateinputhtmlattributevalue
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse
JSON.parse() - JavaScript | MDN
The JSON.parse() static method parses a JSON string, constructing the JavaScript value or object described by the string. An optional reviver function can be...
jsonparsejavascriptmdn
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/random
Math.random() - JavaScript | MDN
The Math.random() static method returns a floating-point, pseudo-random number that's greater than or equal to 0 and less than 1, with approximately uniform...
mathrandomjavascriptmdn
https://developer.mozilla.org/en-US/docs/Web/API/WebCodecs_API
WebCodecs API - Web APIs | MDN
The WebCodecs API enables web developers to encode and decode video and audio in the browser efficiently (using hardware acceleration) and with very low-level...
api webwebcodecsapismdn
https://developer.mozilla.org/en-US/observatory
HTTP Header Security Test - HTTP Observatory | MDN
Test your site’s HTTP headers, including CSP and HSTS, to find security problems and get actionable recommendations to make your website more secure. Test...
http headersecurity testobservatorymdn
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals
Template literals (Template strings) - JavaScript | MDN
Template literals are literals delimited with backtick (`) characters, allowing for multi-line strings, string interpolation with embedded expressions, and...
template literalsstringsjavascriptmdn
https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors/:scope
:scope CSS pseudo-class - CSS | MDN
The :scope CSS pseudo-class represents elements that are a reference point, or scope, for selectors to match against.
scopecsspseudoclassmdn
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/sort
Array.prototype.sort() - JavaScript | MDN
The sort() method of Array instances sorts the elements of an array in place and returns the reference to the same array, now sorted. The default sort order is...
arrayprototypesortjavascriptmdn
https://developer.mozilla.org/en-US/docs/Web/API/Window/fetch
Window: fetch() method - Web APIs | MDN
The fetch() method of the Window interface starts the process of fetching a resource from the network, returning a promise that is fulfilled once the response...
web apiswindowfetchmethodmdn
https://developer.mozilla.org/en-US/docs/Web/API/Geolocation_API
Geolocation API - Web APIs | MDN
The Geolocation API allows the user to provide their location to web applications if they so desire. For privacy reasons, the user is asked for permission to...
geolocation apiweb apismdn
https://developer.mozilla.org/en-US/docs/Web/API/Web_Bluetooth_API
Web Bluetooth API - Web APIs | MDN
The Web Bluetooth API provides the ability to connect and interact with Bluetooth Low Energy peripherals.
web bluetoothapi apismdn
https://github.com/mdn/browser-compat-data
GitHub - mdn/browser-compat-data: Browser compatibility data for Web technologies as displayed on...
Browser compatibility data for Web technologies as displayed on MDN - mdn/browser-compat-data
https://developer.mozilla.org/en-US/docs/Web/API/WebGLRenderingContext/stencilFunc
WebGLRenderingContext: stencilFunc() method - Web APIs | MDN
The WebGLRenderingContext.stencilFunc() method of the WebGL API sets the front and back function and reference value for stencil testing.
web apismethodmdn
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array
Array - JavaScript | MDN
The Array object, as with arrays in other programming languages, enables storing a collection of multiple items under a single variable name, and has members...
arrayjavascriptmdn
https://developer.mozilla.org/en-US/docs/Web/API/IndexedDB_API
IndexedDB API - Web APIs | MDN
IndexedDB is a low-level API for client-side storage of significant amounts of structured data, including files/blobs. This API uses indexes to enable...
api webindexeddbapismdn
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/import
import - JavaScript | MDN
The static import declaration is used to import read-only live bindings which are exported by another module. The imported bindings are called live bindings...
importjavascriptmdn
https://developer.mozilla.org/en-US/docs/Web/API/Headers/Headers
Headers: Headers() constructor - Web APIs | MDN
The Headers() constructor creates a new Headers object.
constructor webheadersapismdn
https://developer.mozilla.org/en-US/docs/Web/API/File
File - Web APIs | MDN
The File interface provides information about files and allows JavaScript in a web page to access their content.
web apisfilemdn
https://github.com/mdn/content
GitHub - mdn/content: The official source for MDN Web Docs content. Home to over 14,000 pages of...
The official source for MDN Web Docs content. Home to over 14,000 pages of documentation about HTML, CSS, JS, HTTP, Web APIs, and more. - mdn/content
https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values/named-color
named-color CSS type - CSS | MDN
namedcolorcsstypemdn
https://developer.mozilla.org/en-US/docs/Web/API/EventTarget
EventTarget - Web APIs | MDN
The EventTarget interface is implemented by objects that can receive events and may have listeners for them. In other words, any target of events implements...
web apiseventtargetmdn
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Operator_precedence
Operator precedence - JavaScript | MDN
Operator precedence determines how operators are parsed concerning each other. Operators with higher precedence become the operands of operators with lower...
operator precedencejavascriptmdn
https://developer.mozilla.org/en-US/docs/Web/API/PaymentRequest
PaymentRequest - Web APIs | MDN
The Payment Request API's PaymentRequest interface is the primary access point into the API, and lets web content and apps accept payments from the end user on...
web apismdn
https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/ETag
ETag header - HTTP | MDN
The HTTP ETag (entity tag) response header is an identifier for a specific version of a resource. It lets caches be more efficient and save bandwidth, as a web...
etagheaderhttpmdn
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/Arrow_functions
Arrow function expressions - JavaScript | MDN
An arrow function expression is a compact alternative to a traditional function expression, with some semantic differences and deliberate limitations in usage:
arrow functionexpressionsjavascriptmdn
https://mastodon.social/@mdn
MDN Web Docs (@mdn@mastodon.social) - Mastodon
567 Posts, 3 Following, 2.88K Followers · The official MDN Web Docs account. We deliver the best web docs around. Visit → https://mdn.dev Contribute →...
mdn web docsmastodonsocial
https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Status/402
402 Payment Required - HTTP | MDN
The HTTP 402 Payment Required client error response status code is a nonstandard response status code reserved for future use.
paymentrequiredhttpmdn
https://developer.mozilla.org/en-US/docs/Web/API/Node
Node - Web APIs | MDN
The DOM Node interface is an abstract base class upon which many other DOM API objects are based, thus letting those object types be used similarly and often...
web apisnodemdn
https://developer.mozilla.org/en-US/docs/Glossary/Inline-level_content
Inline-level content - Glossary | MDN
In CSS, content that participates in inline layout is called inline-level content. Most text sequences, replaced elements, and generated content are...
inlinelevelcontentglossarymdn
https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/Access-Control-Allow-Origin
Access-Control-Allow-Origin header - HTTP | MDN
The HTTP Access-Control-Allow-Origin response header indicates whether the response can be shared with requesting code from the given origin.
access controlalloworiginheaderhttp
https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Status/304
304 Not Modified - HTTP | MDN
The HTTP 304 Not Modified redirection response status code indicates that there is no need to retransmit the requested resources.
modifiedhttpmdn
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_promises
Using promises - JavaScript | MDN
A Promise is an object representing the eventual completion or failure of an asynchronous operation. Since most people are consumers of already-created...
using promisesjavascriptmdn
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map
Array.prototype.map() - JavaScript | MDN
The map() method of Array instances creates a new array populated with the results of calling a provided function on every element in the calling array.
arrayprototypemapjavascriptmdn
https://developer.mozilla.org/en-US/docs/MDN/Writing_guidelines/Attrib_copyright_license
Attribution and copyright licensing - MDN Web Docs | MDN
MDN Web Docs content is available free of charge and is available under various open-source licenses.
copyright licensingattributionmdnwebdocs
https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Status/301
301 Moved Permanently - HTTP | MDN
The HTTP 301 Moved Permanently redirection response status code indicates that the requested resource has been permanently moved to the URL in the Location...
movedpermanentlyhttpmdn
https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/Sec-Fetch-Site
Sec-Fetch-Site header - HTTP | MDN
The HTTP Sec-Fetch-Site fetch metadata request header indicates the relationship between a request initiator's origin and the origin of the requested resource.
site headersecfetchhttpmdn
https://developer.mozilla.org/en-US/docs/Web/API/Gamepad_API/Using_the_Gamepad_API
Using the Gamepad API - Web APIs | MDN
gamepad apiweb apisusingmdn
https://developer.mozilla.org/en-US/docs/Glossary/WebRTC
WebRTC - Glossary | MDN
WebRTC (Web Real-Time Communication) is an API that can be used by video-chat, voice-calling, and P2P-file-sharing Web apps.
webrtcglossarymdn
https://developer.mozilla.org/en-US/docs/Web/API/CSS_Custom_Highlight_API
CSS Custom Highlight API - Web APIs | MDN
The CSS Custom Highlight API provides a mechanism for styling arbitrary text ranges on a document by using JavaScript to create the ranges, and CSS to style...
api webcsscustomhighlightapis
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/typeof
typeof - JavaScript | MDN
The typeof operator returns a string indicating the type of the operand's value.
typeofjavascriptmdn
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/endsWith
String.prototype.endsWith() - JavaScript | MDN
The endsWith() method of String values determines whether a string ends with the characters of this string, returning true or false as appropriate.
stringprototypeendswithjavascriptmdn
https://developer.mozilla.org/en-US/blog/
MDN Blog
The MDN Web Docs site provides information about Open Web technologies including HTML, CSS, and APIs for both Web sites and progressive web apps.
mdnblog
https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/Reference/Attributes/aria-label
ARIA: aria-label attribute - ARIA | MDN
The aria-label attribute defines a string value that can be used to name an element, as long as the element's role does not prohibit naming.
arialabelattributemdn
https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/dataset
HTMLElement: dataset property - Web APIs | MDN
The dataset read-only property of the HTMLElement interface provides read/write access to custom data attributes (data-*) on elements. It exposes a map of...
web apisdatasetpropertymdn
https://developer.mozilla.org/en-US/docs/Glossary/MVC
MVC - Glossary | MDN
MVC (Model-View-Controller) is a pattern in software design commonly used to implement user interfaces, data, and controlling logic. It emphasizes a separation...
mvcglossarymdn
https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties/mix-blend-mode
mix-blend-mode CSS property - CSS | MDN
The mix-blend-mode CSS property sets how an element's content should blend with the content of the element's parent and the element's background.
blend modemixcsspropertymdn
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date
Date - JavaScript | MDN
JavaScript Date objects represent a single moment in time in a platform-independent format. Date objects encapsulate an integral number that represents...
datejavascriptmdn
https://developer.mozilla.org/en-US/docs/Web/API/Web_Animations_API/Using_the_Web_Animations_API
Using the Web Animations API - Web APIs | MDN
The Web Animations API lets us construct animations and control their playback with JavaScript. This article will start you off in the right direction with fun...
web animations apiusingapismdn
https://developer.mozilla.org/en-US/docs/Glossary/Global_object
Global object - Glossary | MDN
The global object in JavaScript is an object which represents the global scope.
globalobjectglossarymdn
https://developer.mozilla.org/en-US/docs/Web/Media/Guides/Formats/Image_types
Image file type and format guide - Media | MDN
In this guide, we'll cover the image file types generally supported by web browsers, and provide insights that will help you select the most appropriate...
image fileformat guidetypemediamdn
https://developer.mozilla.org/en-US/docs/Web/API/Navigator/storage
Navigator: storage property - Web APIs | MDN
The Navigator.storage read-only property returns the singleton StorageManager object used to access the overall storage capabilities of the browser for the...
storage propertyweb apisnavigatormdn
https://developer.mozilla.org/en-US/docs/Web/API/NavigatorUAData
NavigatorUAData - Web APIs | MDN
The NavigatorUAData interface of the User-Agent Client Hints API returns information about the browser and operating system of a user.
web apismdn
https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/Cross-Origin-Opener-Policy
Cross-Origin-Opener-Policy (COOP) header - HTTP | MDN
The HTTP Cross-Origin-Opener-Policy (COOP) response header allows a website to control whether a new top-level document, opened using Window.open() or by...
cross originopenerpolicycoopheader
https://developer.mozilla.org/en-US/docs/Web/API/Notification/Notification
Notification: Notification() constructor - Web APIs | MDN
The Notification() constructor creates a new Notification object instance, which represents a user notification.
constructor webnotificationapismdn
https://developer.mozilla.org/en-US/docs/Web/API/History_API
History API - Web APIs | MDN
The History API provides access to the browser's session history (not to be confused with WebExtensions history) through the history global object. It exposes...
history apiweb apismdn
https://developer.mozilla.org/en-US/docs/Web/API/Intersection_Observer_API
Intersection Observer API - Web APIs | MDN
The Intersection Observer API provides a way to asynchronously observe changes in the intersection of a target element with an ancestor element or with a...
intersection observer apiweb apismdn
https://developer.mozilla.org/en-US/docs/Web/API/Navigator/share
Navigator: share() method - Web APIs | MDN
The share() method of the Navigator interface invokes the native sharing mechanism of the device to share data such as text, URLs, or files. The available...
web apisnavigatorsharemethodmdn
https://developer.mozilla.org/en-US/docs/Web/API/Document/cookie
Document: cookie property - Web APIs | MDN
The Document property cookie lets you read and write cookies associated with the document. It serves as a getter and setter for the actual values of the...
web apisdocumentcookiepropertymdn
https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API
Service Worker API - Web APIs | MDN
Service workers essentially act as proxy servers that sit between web applications, the browser, and the network (when available). They are intended, among...
service workerapi webapismdn
https://developer.mozilla.org/en-US/docs/Web/HTTP/Guides/Cookies
Using HTTP cookies - HTTP | MDN
A cookie (also known as a web cookie or browser cookie) is a small piece of data a server sends to a user's web browser. The browser may store cookies, create...
http cookiesusingmdn
https://developer.mozilla.org/en-US/docs/Web/URI/Reference/Fragment/Text_fragments
Text fragments - URIs | MDN
Text fragments link directly to specific text in a web page, without requiring the page author to add an ID. They use a special syntax in the URL fragment....
textfragmentsurismdn
https://developer.mozilla.org/en-US/docs/Web/API/Location/href
Location: href property - Web APIs | MDN
The href property of the Location interface is a stringifier that returns a string containing the whole URL, and allows the href to be updated.
web apislocationhrefpropertymdn
https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/Cross-Origin-Embedder-Policy
Cross-Origin-Embedder-Policy (COEP) header - HTTP | MDN
The HTTP Cross-Origin-Embedder-Policy (COEP) response header configures the current document's policy for loading and embedding cross-origin resources that are...
cross originembedderpolicycoepheader
https://developer.mozilla.org/en-US/docs/Learn_web_development/Core/Scripting
Dynamic scripting with JavaScript - Learn web development | MDN
JavaScript is a huge topic, with so many different features, styles, and techniques to learn, and so many APIs and tools built on top of it. This module...
learn web developmentdynamicscriptingjavascriptmdn
https://developer.mozilla.org/en-US/docs/Web/Security
Security on the web | MDN
Websites contain several different types of information. Some of it is non-sensitive, for example the copy shown on the public pages. Some of it is sensitive,...
on the websecuritymdn
https://developer.mozilla.org/en-US/docs/Web/API/Element/moveBefore
Element: moveBefore() method - Web APIs | MDN
The moveBefore() method of the Element interface moves a given Node inside the invoking node as a direct child, before a given reference node.
web apiselementmethodmdn
https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/arc
CanvasRenderingContext2D: arc() method - Web APIs | MDN
The CanvasRenderingContext2D.arc() method of the Canvas 2D API adds a circular arc to the current sub-path.
web apisarcmethodmdn
https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/Access-Control-Max-Age
Access-Control-Max-Age header - HTTP | MDN
The HTTP Access-Control-Max-Age response header indicates how long the results of a preflight request (that is, the information contained in the...
access controlmaxageheaderhttp
https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties/corner-shape
corner-shape CSS property - CSS | MDN
The corner-shape shorthand CSS property specifies the shape of a box's corners, within the area specified by its border-radius property value.
cornershapecsspropertymdn