Skip to main content Skip to docs navigation

Learn
Newsletter

Github Github
Twitter Twitter
Medium Medium
YouTube YouTube
Open Collective Open Collective
Buy me a coffee Buy me a coffee

Learn web development

Glossary
- Abstraction
- Accent
- Accessibility
- Accessibility tree
- Accessible description
- Accessible name
- Adobe Flash
- Advance measure
- Ajax
- Algorithm
- Alignment container
- Alignment subject
- Alpha (alpha channel)
- ALPN
- API
- Apple Safari
- Application Context
- Argument
- ARIA
- ARPA
- ARPANET
- Array
- ASCII
- Aspect ratio
- Asynchronous
- ATAG
- Attribute
- Bandwidth
- Base64
- Baseline
- Beacon
- Bézier curve
- bfcache
- BiDi
- BigInt
- Binding
- Bitwise flags
- Blink
- Block
- Block cipher mode of operation
- Block-level content
- Boolean
- Bounding Box
- Breadcrumb
- Brotli compression
- Browser
- Browsing context
- Buffer
- Cache
- Cacheable
- CalDAV
- Call stack
- Callback function
- Camel case
- Canonical order
- Canvas
- Card sorting
- CardDAV
- Caret
- CDN
- Certificate authority
- Certified
- Challenge-response authentication
- Character
- Character encoding
- Character set
- Chrome
- CIA
- Cipher
- Cipher suite
- Ciphertext
- Class
- Clickjacking
- Closure
- CMS
- Code point
- Code splitting
- Code unit
- Codec
- Color space
- Color wheel
- Compile
- Compile time
- Composite operation
- Computer Programming
- Conditional
- Constant
- Constructor
- Continuous Media
- Control flow
- Cookie
- Copyleft
- CORS
- CORS-safelisted request header
- CORS-safelisted response header
- Crawler
- CRLF
- Cross Axis
- Cross-site scripting (XSS)
- CRUD
- Cryptanalysis
- Cryptographic hash function
- Cryptography
- CSP
- CSRF
- CSS
- CSS Object Model (CSSOM)
- CSS pixel
- CSS preprocessor
- Data structure
- Database
- Decryption
- Deep copy
- Delta
- Denial of Service
- Deno
- Descriptor (CSS)
- Deserialization
- Developer Tools
- Digest
- Digital certificate
- Distributed Denial of Service
- DMZ
- DNS
- Doctype
- Document directive
- Document environment
- DOM (Document Object Model)
- Domain
- Domain name
- Domain sharding
- Dominator
- DoS attack
- DSL
- DTLS (Datagram Transport Layer Security)
- DTMF (Dual-Tone Multi-Frequency signaling)
- Dynamic typing
- ECMA
- ECMAScript
- Effective connection type
- Element
- Encapsulation
- Encryption
- Endianness
- Engine
- Entity
- Entity header
- Enumerated
- eTLD
- Event
- Exception
- EXIF
- Expando
- Fallback alignment
- Falsy
- Favicon
- Fetch directive
- Fetch metadata request header
- Fingerprinting
- Firefox OS
- Firewall
- First contentful paint
- First CPU idle
- First input delay
- First Meaningful Paint
- First paint
- First-class Function
- Flex
- Flex Container
- Flex Item
- Flexbox
- Forbidden header name
- Forbidden response header name
- Fork
- Fragmentainer
- Frame rate (FPS)
- FTP
- FTU
- Function
- Fuzz testing
- Gamut
- Garbage collection
- Gecko
- General header
- GIF
- Git
- Global object
- Global scope
- Global variable
- Glyph
- Google Chrome
- GPL
- GPU
- Graceful degradation
- Grid
- Grid Areas
- Grid Axis
- Grid Cell
- Grid Column
- Grid container
- Grid Lines
- Grid Row
- Grid Tracks
- Guard
- Gutters
- GZip compression
- Hash
- Head
- High-level programming language
- HMAC
- Hoisting
- Host
- Hotlink
- Houdini
- HPKP
- HSTS
- HTML
- HTML5
- HTTP
- HTTP header
- HTTP/2
- HTTP/3
- HTTPS
- HTTPS RR
- Hyperlink
- Hypertext
- IANA
- ICANN
- ICE
- IDE
- Idempotent
- Identifier
- IDL
- IETF
- IIFE
- IMAP
- Immutable
- IndexedDB
- Information architecture
- Inheritance
- Ink overflow
- Inline-level content
- Input method editor
- Instance
- Internationalization (i18n)
- Internet
- Interpolation
- Intrinsic size
- IP Address
- IPv4
- IPv6
- IRC
- ISO
- ISP
- ITU
- Jank
- Java
- JavaScript
- JPEG
- JSON
- JSON type representation
- Kebab case
- Key
- Keyword
- Largest contentful paint
- Latency
- Layout viewport
- Lazy load
- LGPL
- Ligature
- Literal
- Local scope
- Local variable
- Locale
- Localization
- Long task
- Loop
- Lossless compression
- Lossy compression
- LTR (Left To Right)
- Main Axis
- Main thread
- Markup
- MathML
- Media
- Media query
- Metadata
- Method
- Microsoft Edge
- Microsoft Internet Explorer
- Middleware
- MIME
- MIME type
- Minification
- MitM
- Mixin
- Mobile First
- Modem
- Modularity
- Mozilla Firefox
- Mutable
- MVC
- Namespace
- NaN
- NAT
- Native
- Navigation directive
- Netscape Navigator
- Network throttling
- NNTP
- Node
- Node.js
- Non-normative
- Normative
- Null
- Nullish value
- Number
- Object
- Object reference
- OOP
- OpenGL
- OpenSSL
- Opera Browser
- Operand
- Operator
- Origin
- OTA
- OWASP
- P2P
- PAC
- Packet
- Page load time
- Page prediction
- Parameter
- Parent object
- Parse
- Parser
- Payload body
- Payload header
- PDF
- Perceived performance
- Percent-encoding
- PHP
- Pixel
- Placeholder names
- Plaintext
- Plugin
- PNG
- Polyfill
- Polymorphism
- POP3
- Port
- Prefetch
- Preflight request
- Prerender
- Presto
- Primitive
- Privileged
- Privileged code
- Progressive Enhancement
- Progressive web apps
- Promise
- Property
- Protocol
- Prototype
- Prototype-based programming
- Proxy server
- Pseudo-class
- Pseudo-element
- Pseudocode
- Public-key cryptography
- Python
- Quality values
- Quaternion
- QUIC
- RAIL
- Random Number Generator
- Raster image
- RDF
- Real User Monitoring (RUM)
- Recursion
- Reflow
- Regular expression
- Render-blocking
- Rendering engine
- Repaint
- Replay attack
- Repo
- Reporting directive
- Representation header
- Request header
- Resource Timing
- Response header
- Responsive web design
- REST
- RGB
- RIL
- Robots.txt
- Round Trip Time (RTT)
- Routers
- RSS
- Rsync
- RTCP (RTP Control Protocol)
- RTF
- RTL (Right to Left)
- RTP (Real-time Transport Protocol) and SRTP (Secure RTP)
- RTSP: Real-time streaming protocol
- Ruby
- Safe
- Same-origin policy
- SCM
- Scope
- Screen reader
- Script-supporting element
- Scroll boundary
- Scroll chaining
- Scroll container
- SCTP
- SDK (Software Development Kit)
- SDP
- Search engine
- Second-level Domain
- Secure Context
- Secure Sockets Layer (SSL)
- Selector (CSS)
- Self-Executing Anonymous Function
- Semantics
- SEO
- Serializable object
- Serialization
- Server
- Server Timing
- Session Hijacking
- SGML
- Shadow tree
- Shallow copy
- Shim
- Signature
- SIMD
- Simple header
- Simple response header
- SISD
- Site
- Site map
- SLD
- Sloppy mode
- Slug
- Smoke Test
- SMPTE (Society of Motion Picture and Television Engineers)
- SMTP
- Snake case
- Snap positions
- SOAP
- SPA (Single-page application)
- Specification
- Speculative parsing
- Speed index
- SQL
- SQL Injection
- SRI
- Stacking context
- State machine
- Statement
- Static method
- Static typing
- Sticky activation
- Strict mode
- String
- Stringifier
- STUN
- Style origin
- Stylesheet
- Submit button
- SVG
- SVN
- Symbol
- Symmetric-key cryptography
- Synchronous
- Syntax
- Syntax error
- Synthetic monitoring
- Table Grid Box
- Table Wrapper Box
- Tag
- TCP
- TCP handshake
- TCP slow start
- Telnet
- Texel
- The Khronos Group
- Thread
- Three js
- Time to first byte
- Time to interactive
- TLD
- TOFU
- Top layer
- Transient activation
- Transport Layer Security (TLS)
- Tree shaking
- Trident
- Truthy
- TTL
- TURN
- Type
- Type coercion
- Type conversion
- TypeScript
- UDP (User Datagram Protocol)
- UI
- Undefined
- Unicode
- Unix time
- URI
- URL
- URN
- Usenet
- User agent
- UTF-8
- UUID
- UX
- Validator
- Value
- Variable
- Vendor Prefix
- Viewport
- Visual Viewport
- Void element
- VoIP
- W3C
- WAI
- WCAG
- Web performance
- Web server
- Web standards
- WebAssembly
- WebDAV
- WebExtensions
- WebGL
- WebIDL
- WebKit
- WebM
- WebP
- WebRTC
- WebSockets
- WebVTT
- WHATWG
- Whitespace
- WindowProxy
- World Wide Web
- Wrapper
- XForms Deprecated
- XHTML
- XInclude
- XLink
- XML
- XMLHttpRequest (XHR)
- XPath
- XQuery
- XSLT
- Zstandard compression

View on GitHub

Instance

An object created by a constructor is an instance of that constructor.

On this page

See also

Instance

See also

Instance on Wikipedia

Updated on April 20, 2024 by Datarist.

Subscribe to our newsletter
Get tips, technical guides, and best practices. Once a month. Right in your inbox.
Subscribe

Links
Home
Learn
Newsletter

Learn
Getting Started
HTML
CSS
JavaScript
Forms
Images
Accessibility
Design
Performance
Privacy
Security
Apps
MathML
Games
Tools
More

Datarist
About
Brand
Terms
Privacy
Cookies
Contact

Community
Github
Twitter
Medium
YouTube
Open Collective
Buy me a coffee

© 2024 Datarist