Developer Mozilla · Resources

Resources listings from Developer Mozilla on TechiSeek. 128 public listings.

• Call stack - Glossary (Developer Mozilla)
  A call stack is a mechanism for an interpreter (like the JavaScript interpreter in a web browser) to keep track of its place in a script th…
• Preflight request - Glossary (Developer Mozilla)
  A CORS preflight request is a CORS request that checks to see if the CORS protocol is understood and a server is aware using specific metho…
• Document directive - Glossary (Developer Mozilla)
  In CSP, document directives are used in a Content-Security-Policy header and govern the properties of a document or worker environment to w…
• Local variable - Glossary (Developer Mozilla)
  A variable whose name is bound to its value only within a local scope.
• Zstandard compression - Glossary (Developer Mozilla)
  Zstandard is a general-purpose lossless compression algorithm.
• Content header - Glossary (Developer Mozilla)
  Content headers are the group of HTTP headers that describe the content of the body of an HTTP message, after any message framing in the bo…
• Shallow copy - Glossary (Developer Mozilla)
  A shallow copy of an object is a copy whose properties share the same references (point to the same underlying values) as those of the sour…
• Accessible description - Glossary (Developer Mozilla)
  An accessible description is the description of a user interface element that provides additional information to help users of assistive te…
• Vendor prefix - Glossary (Developer Mozilla)
  Browser vendors used to add prefixes to experimental or nonstandard CSS properties and JavaScript APIs, so developers could experiment with…
• CORS-safelisted response header - Glossary (Developer Mozilla)
  A CORS-safelisted response header (also known as "simple response header") is an HTTP header in a CORS response that it is considered safe…
• First-class function - Glossary (Developer Mozilla)
  A programming language is said to have First-class functions when functions in that language are treated like any other variable.
• Main axis - Glossary (Developer Mozilla)
  The main axis in flexbox is defined by the direction set by the flex-direction property. There are four possible values for flex-direction.
• Page load time - Glossary (Developer Mozilla)
  Page load time is the time it takes for a page to load, measured from navigation start to the start of the load event.
• Adobe Flash - Glossary (Developer Mozilla)
  Flash is an obsolete technology developed by Adobe for viewing expressive web applications, multimedia content, and streaming media.
• Submit button - Glossary (Developer Mozilla)
  A submit button is an element in HTML that can be used to submit a .
• Garbage collection - Glossary (Developer Mozilla)
  Garbage collection is a term used in computer programming to describe the process of finding and deleting objects which are no longer being…
• Color wheel - Glossary (Developer Mozilla)
  A color wheel, or a color circle, represents a palette of colors in chart form, arranged in a circle.
• Random Number Generator - Glossary (Developer Mozilla)
  A PRNG (pseudorandom number generator) is an algorithm that outputs numbers in a complex, seemingly unpredictable pattern.
• Hash routing - Glossary (Developer Mozilla)
  Hash routing is a client-side technique used in single-page applications (SPAs) to manage navigation and state changes without reloading th…
• Baseline (compatibility) - Glossary (Developer Mozilla)
  Baseline identifies the availability of web platform features across popular browsers, including APIs, CSS properties, and JavaScript synta…
• User agent - Glossary (Developer Mozilla)
  A user agent is a computer program representing a person, for example, a browser in a Web context.
• Cloud computing - Glossary (Developer Mozilla)
  Cloud computing refers to the on-demand delivery of a wide range of computing services such as storage, databases, networking, analytics, a…
• Aspect ratio - Glossary (Developer Mozilla)
  An aspect ratio is the proportional relationship between an element or viewport's width and height.
• BCP 47 language tag - Glossary (Developer Mozilla)
  A BCP 47 language tag is a string of characters that precisely specifies a human language in terms of the basic language, but also optional…
• Interpolation - Glossary (Developer Mozilla)
  Interpolation is a method for estimating new data points based on a set of known data points.
• Visual viewport - Glossary (Developer Mozilla)
  The portion of the viewport that is currently visible is called the visual viewport. This can be smaller than the layout viewport, for exam…
• Speculative parsing - Glossary (Developer Mozilla)
  Traditionally in browsers the HTML parser ran on the main thread and was blocked after a tag until the script has been retrieved from the n…
• Media (Audio-visual presentation) - Glossary (Developer Mozilla)
  The term media (more accurately, multimedia) refers to audio, video, or combined audio-visual material such as music, recorded speech, movi…
• HTML color codes - Glossary (Developer Mozilla)
  HTML color codes is a defacto general term used to describe the earliest-available methods for specifying colors on web pages.
• Compression Dictionary Transport - Glossary (Developer Mozilla)
  Compression Dictionary Transport is a way of using a shared compression dictionary, rather than the standard static dictionary in Brotli co…
• Serializable object - Glossary (Developer Mozilla)
  Serializable objects are objects that can be serialized and later deserialized in any JavaScript environment ("realm").
• RTP (Real-time Transport Protocol) and SRTP (Secure RTP) - Glossary (Developer Mozilla)
  The Real-time Transport Protocol (RTP) is a network protocol which described how to transmit various media (audio, video) from one endpoint…
• Screen reader - Glossary (Developer Mozilla)
  Screen readers are software applications that attempt to convey what is seen on a screen display in a non-visual way, usually as text to sp…
• Client-side rendering (CSR) - Glossary (Developer Mozilla)
  Client-side rendering (CSR) refers to the practice of generating HTML content using JavaScript in the browser.
• Inset properties - Glossary (Developer Mozilla)
  In CSS, inset properties control positioned elements' location by specifying offsets from the elements' default positions.
• Bitwise flags - Glossary (Developer Mozilla)
  Bitwise flags are sets of variables, usually simple number values, which can be used to enable or disable specific usages or features of a…
• Transport Layer Security (TLS) - Glossary (Developer Mozilla)
  Transport Layer Security (TLS), formerly known as Secure Sockets Layer (SSL), is a protocol used by applications to communicate securely ac…
• Void element - Glossary (Developer Mozilla)
  A void element is an element in HTML that cannot have any child nodes (i.e., nested elements or text nodes).
• Reading order - Glossary (Developer Mozilla)
  Reading order refers to the order in which content is accessed, for example when read out by a screen reader, or navigated to using sequent…
• Character encoding - Glossary (Developer Mozilla)
  Character encoding defines a mapping between bytes and text. A sequence of bytes allows for different textual interpretations.
• Alpha (alpha channel) - Glossary (Developer Mozilla)
  The alpha channel specifies the opacity of a . Colors are represented in digital form as a collection of numbers, each representing the str…
• Forbidden request header - Glossary (Developer Mozilla)
  A forbidden request header is an HTTP header name-value pair that cannot be set or modified programmatically in a request.
• Scroll container - Glossary (Developer Mozilla)
  A scroll container is an element box whose content can be scrolled, whether or not scroll bars are present.
• Control flow - Glossary (Developer Mozilla)
  Control flow is the order in which the computer executes statements in a script.
• Signature (functions) - Glossary (Developer Mozilla)
  A function signature (or type signature, or method signature) defines input and output of functions or methods.
• HTTP content - Glossary (Developer Mozilla)
  In HTTP messages, the content describes the 'information' conveyed in the message body (which follows the header section), after any messag…
• Selector (CSS) - Glossary (Developer Mozilla)
  A CSS selector is the part of a CSS rule that describes what elements in a document the rule will match.
• Payload header - Glossary (Developer Mozilla)
  A payload header is an HTTP header that describes the payload information related to safe transport and reconstruction of the original reso…
• Async scripts for asm.js - Game development (Developer Mozilla)
  Every medium or large game should compile asm.js code as part of an async script to give the browser the maximum flexibility to optimize th…
• DTLS (Datagram Transport Layer Security) - Glossary (Developer Mozilla)
  Datagram Transport Layer Security (DTLS) is a protocol used to secure datagram-based communications.