randomMDN

🦖 Temporal.ZonedDateTime.prototype.day
🟧 Limited availability

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Temporal/ZonedDateTime/day

The day accessor property of Temporal.ZonedDateTime instances returns a positive integer representing the 1-based day index […]

Object.isFrozen() - JavaScript | MDN The Object.isFrozen() static method determines if an object is frozen.

🦖 Object.isFrozen()
✅ Widely available (from Jul 2015)

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/isFrozen

The Object.isFrozen() static method determines if an object is frozen.

#webdev #JavaScript

🦖 WEBGL_multi_draw: multiDrawElementsWEBGL() method
🟧 Limited availability

https://developer.mozilla.org/en-US/docs/Web/API/WEBGL_multi_draw/multiDrawElementsWEBGL

The WEBGL_multi_draw.multiDrawElementsWEBGL() method of the WebGL API renders multiple primitives from array data. It is identical […]

🦖 ARIA: feed role 🦖

https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/Reference/Roles/feed_role

A feed is a dynamic scrollable list of articles in which articles are added to or removed from either end of the list as the user scrolls. A feed enables screen readers to use the […]

Math.sin() - JavaScript | MDN The Math.sin() static method returns the sine of a number in radians.

🦖 Math.sin()
✅ Widely available (from Jul 2015)

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/sin

The Math.sin() static method returns the sine of a number in radians.

#webdev #JavaScript

BarcodeDetector - Web APIs | MDN The BarcodeDetector interface of the Barcode Detection API allows detection of linear and two dimensional barcodes in images.

🦖 BarcodeDetector
🟧 Limited availability

https://developer.mozilla.org/en-US/docs/Web/API/BarcodeDetector

The BarcodeDetector interface of the Barcode Detection API allows detection of linear and two dimensional barcodes in images.

#webdev

🦖 XRInputSource: profiles property
🟧 Limited availability

https://developer.mozilla.org/en-US/docs/Web/API/XRInputSource/profiles

The read-only XRInputSource property profiles returns an array of strings, each describing a configuration profile for the input source. The profile strings are […]

CSSTransformValue: is2D property - Web APIs | MDN The read-only is2D property of the CSSTransformValue interface returns whether the transform is 2D or 3D.

🦖 CSSTransformValue: is2D property
🟧 Limited availability

https://developer.mozilla.org/en-US/docs/Web/API/CSSTransformValue/is2D

The read-only is2D property of the CSSTransformValue interface returns whether the transform is 2D or 3D.

#webdev

🦖 PasswordCredential
🟧 Limited availability

https://developer.mozilla.org/en-US/docs/Web/API/PasswordCredential

The PasswordCredential interface of the Credential Management API provides information about a username/password pair. In supporting browsers an instance of this class may be passed […]

Blob: arrayBuffer() method - Web APIs | MDN The arrayBuffer() method of the Blob interface returns a Promise that resolves with the contents of the blob as binary data contained in an ArrayBuffer.

🦖 Blob: arrayBuffer() method
✅ Widely available (from Apr 2021)

https://developer.mozilla.org/en-US/docs/Web/API/Blob/arrayBuffer

The arrayBuffer() method of the Blob interface returns a Promise that resolves with the contents of the blob as binary data contained in an ArrayBuffer.

#webdev

Sensor: reading event - Web APIs | MDN The reading event is fired when a new reading is available on a sensor.

🦖 Sensor: reading event
🟧 Limited availability

https://developer.mozilla.org/en-US/docs/Web/API/Sensor/reading_event

The reading event is fired when a new reading is available on a sensor.

#webdev

🦖 MediaDeviceInfo: deviceId property
✅ Widely available (from Sept 2017)

https://developer.mozilla.org/en-US/docs/Web/API/MediaDeviceInfo/deviceId

The deviceId read-only property of the MediaDeviceInfo interface returns a string that is an identifier for the represented device and is persisted […]

font-optical-sizing - CSS | MDN The font-optical-sizing CSS property sets whether text rendering is optimized for viewing at different sizes.

🦖 font-optical-sizing
✅ Widely available (from Mar 2020)

https://developer.mozilla.org/en-US/docs/Web/CSS/font-optical-sizing

The font-optical-sizing CSS property sets whether text rendering is optimized for viewing at different sizes.

#webdev #CSS

Cross-browser audio basics - Media | MDN This article provides:

🦖 Cross-browser audio basics 🦖

https://developer.mozilla.org/en-US/docs/Web/Media/Guides/Audio_and_video_delivery/Cross-browser_audio_basics

This article provides:

#webdev

🦖 & nesting selector
☑️ Newly available (from Dec 2023)

https://developer.mozilla.org/en-US/docs/Web/CSS/Nesting_selector

The CSS & nesting selector explicitly states the relationship between parent and child rules when using CSS nesting. It makes the nested child rule selectors relative to […]

🦖 HIDConnectionEvent
🟧 Limited availability

https://developer.mozilla.org/en-US/docs/Web/API/HIDConnectionEvent

The HIDConnectionEvent interface of the WebHID API represents HID connection events, and is the event type passed to connect and disconnect event handlers when a device's connection […]

🦖 Greater than 🦖

https://developer.mozilla.org/en-US/docs/WebAssembly/Reference/Numeric/Greater_than

The gt instructions, short for greater than, check if a number is greater than another number. If the first number is greater than the second number equal 1 will be pushed on to the stack […]

Document: defaultView property - Web APIs | MDN In browsers, document.defaultView returns the window object associated with a document, or null if none is available.

🦖 Document: defaultView property
✅ Widely available (from Jul 2015)

https://developer.mozilla.org/en-US/docs/Web/API/Document/defaultView

In browsers, document.defaultView returns the window object associated with a document, or null if none is available.

#webdev

🦖 RTCPeerConnection: datachannel event
✅ Widely available (from Jan 2020)

https://developer.mozilla.org/en-US/docs/Web/API/RTCPeerConnection/datachannel_event

A datachannel event is sent to an RTCPeerConnection instance when an RTCDataChannel has been added to the connection, as a result of […]

CSSPageRule: selectorText property - Web APIs | MDN The selectorText property of the CSSPageRule interface gets and sets the selectors associated with the CSSPageRule.

🦖 CSSPageRule: selectorText property
☑️ Newly available (from Feb 2023)

https://developer.mozilla.org/en-US/docs/Web/API/CSSPageRule/selectorText

The selectorText property of the CSSPageRule interface gets and sets the selectors associated with the CSSPageRule.

#webdev

🦖 WebAssembly.instantiateStreaming()
✅ Widely available (from Sept 2021)

https://developer.mozilla.org/en-US/docs/WebAssembly/Reference/JavaScript_interface/instantiateStreaming_static

The WebAssembly.instantiateStreaming() static method compiles and instantiates a WebAssembly module directly […]

🦖 Unicode character class escape: \p{...}, \P{...}
✅ Widely available (from Jul 2020)

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Unicode_character_class_escape

A unicode character class escape is a kind of character class escape that matches a set of […]

502 Bad Gateway - HTTP | MDN The HTTP 502 Bad Gateway server error response status code indicates that a server was acting as a gateway or proxy and that it received an invalid response from the upstream server.

🦖 502 Bad Gateway 🦖

https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Status/502

The HTTP 502 Bad Gateway server error response status code indicates that a server was acting as a gateway or proxy and that it received an invalid response from the upstream server.

#webdev #HTTP

🦖 CSS mask properties 🦖

https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_masking/Mask_properties

CSS masking is a technique that enables you to define visible portions of an element by applying a mask, which selectively reveals or hides parts of the element based on the alpha channels, and […]

🦖 ExtendableMessageEvent
✅ Widely available (from Apr 2018)

https://developer.mozilla.org/en-US/docs/Web/API/ExtendableMessageEvent

The ExtendableMessageEvent interface of the Service Worker API represents the event object of a message event fired on a service worker (when a message is […]

🦖 EditContext: textupdate event
🟧 Limited availability

https://developer.mozilla.org/en-US/docs/Web/API/EditContext/textupdate_event

The textupdate event of the EditContext interface fires when the user has made changes to the text or selection of an editable region that's attached to an […]

🦖 ProgressEvent: loaded property
✅ Widely available (from Jul 2015)

https://developer.mozilla.org/en-US/docs/Web/API/ProgressEvent/loaded

The ProgressEvent.loaded read-only property is a number indicating the size of the data already transmitted or processed. The progress ratio can be […]

🦖 values 🦖

https://developer.mozilla.org/en-US/docs/Web/SVG/Reference/Attribute/values

The values attribute has different meanings, depending upon the context where it's used, either it defines a sequence of values used over the course of an animation, or it's a list of numbers for a color […]

🦖 VideoPlaybackQuality: droppedVideoFrames property
✅ Widely available (from Mar 2019)

https://developer.mozilla.org/en-US/docs/Web/API/VideoPlaybackQuality/droppedVideoFrames

The read-only droppedVideoFrames property of the VideoPlaybackQuality interface returns the number of video frames […]

🦖 Choosing between www and non-www URLs 🦖

https://developer.mozilla.org/en-US/docs/Web/URI/Guides/Choosing_between_www_and_non-www_URLs

A recurring question among website owners is whether to choose 'www' (www.example.com) or 'non-www' (example.com) URLs. This page provides some advice on […]