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randomMDN
@randommdn.front-end.social.ap.brid.gy
A bot that shares random articles on MDN.

This bot is NOT related to or developed by @mozilla.

Honorable mentions:
- @stefan: twitter bot original
- @jaandrle

[bridged from https://front-end.social/@randomMDN on the fediverse by https://fed.brid.gy/ ]
🦖 Temporal.PlainDate.prototype.toLocaleString()
🟧 Limited availability

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

The toLocaleString() method of Temporal.PlainDate instances returns a string with a language-sensitive […]
Original post on front-end.social
front-end.social
December 17, 2025 at 7:03 PM
🦖 HTMLOptionElement: selected property
✅ Widely available (from Jul 2015)

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

The selected property of the HTMLOptionElement interface specifies the current selectedness of the element; that is, whether the
Original post on front-end.social
front-end.social
December 17, 2025 at 10:03 AM
🦖 rect()
☑️ Newly available (from Jan 2024)

https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values/basic-shape/rect

The rect() CSS function creates a rectangle at the specified distance from the top and left edges of the containing block. It is a basic shape function of the […]
Original post on front-end.social
front-end.social
December 16, 2025 at 7:02 PM
🦖 SecurityPolicyViolationEvent: columnNumber property
✅ Widely available (from Oct 2018)

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

The columnNumber read-only property of the SecurityPolicyViolationEvent interface is the column number in the […]
Original post on front-end.social
front-end.social
December 16, 2025 at 10:02 AM
🦖 List group with badges 🦖

https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/List_group_with_badges

In this recipe we will create a list group pattern with badges that indicate a count.

#webdev #css
List group with badges - CSS | MDN
In this recipe we will create a list group pattern with badges that indicate a count.
developer.mozilla.org
December 15, 2025 at 7:09 PM
🦖 SVGTransform: setSkewX() method
✅ Widely available (from Jul 2015)

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

The setSkewX() method of the SVGTransform interface sets the transform type to SVG_TRANSFORM_SKEWX, with parameter angle defining the amount of skew along […]
Original post on front-end.social
front-end.social
December 15, 2025 at 10:03 AM
🦖 ARIA: aria-level attribute 🦖

https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/Reference/Attributes/aria-level

The aria-level attribute defines the hierarchical level of an element within a structure.

#webdev #accessibility
ARIA: aria-level attribute - ARIA | MDN
The aria-level attribute defines the hierarchical level of an element within a structure.
developer.mozilla.org
December 14, 2025 at 7:11 PM
🦖
✅ Widely available (from Jul 2015)

https://developer.mozilla.org/en-US/docs/Web/SVG/Reference/Element/text

The SVG element draws a graphics element consisting of text. It's possible to apply a gradient, pattern, clipping path, mask, or filter to , like any other SVG […]
Original post on front-end.social
front-end.social
December 14, 2025 at 10:03 AM
🦖 StyleSheetList
✅ Widely available (from Jul 2015)

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

The StyleSheetList interface represents a list of CSSStyleSheet objects. An instance of this object can be returned by Document.styleSheets.

#webdev
StyleSheetList - Web APIs | MDN
The StyleSheetList interface represents a list of CSSStyleSheet objects. An instance of this object can be returned by Document.styleSheets.
developer.mozilla.org
December 13, 2025 at 7:02 PM
🦖 Gamepad: axes property
✅ Widely available (from Mar 2017)

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

The Gamepad.axes property of the Gamepad interface returns an array representing the controls with axes present on the device (e.g., analog thumb sticks).

#webdev
Gamepad: axes property - Web APIs | MDN
The Gamepad.axes property of the Gamepad interface returns an array representing the controls with axes present on the device (e.g., analog thumb sticks).
developer.mozilla.org
December 13, 2025 at 10:02 AM
🦖 MediaDevices: getDisplayMedia() method
🟧 Limited availability

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

The getDisplayMedia() method of the MediaDevices interface prompts the user to select and grant permission to capture the contents of a display or […]
Original post on front-end.social
front-end.social
December 12, 2025 at 7:44 PM
🦖 SVGFEMergeElement
✅ Widely available (from Jul 2015)

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

The SVGFEMergeElement interface corresponds to the element.

#webdev
SVGFEMergeElement - Web APIs | MDN
The SVGFEMergeElement interface corresponds to the element.
developer.mozilla.org
December 12, 2025 at 11:22 AM
🦖 SVGFETurbulenceElement: type property
✅ Widely available (from Jul 2015)

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

The type read-only property of the SVGFETurbulenceElement interface reflects the type attribute of the given element. It takes […]
Original post on front-end.social
front-end.social
December 11, 2025 at 7:03 PM
🦖 TypeError: Initializing an object twice is an error with private fields/methods 🦖

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Private_double_initialization

The JavaScript exception "Initializing an object twice is an error with private fields/methods" occurs when […]
Original post on front-end.social
front-end.social
December 11, 2025 at 10:02 AM
🦖 SpeechRecognition: interimResults property
🟧 Limited availability

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

The interimResults property of the SpeechRecognition interface controls whether interim results should be returned (true) or not (false) […]
Original post on front-end.social
front-end.social
December 10, 2025 at 7:05 PM
🦖 Segments.prototype.containing()
☑️ Newly available (from Apr 2024)

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/Segmenter/segment/Segments/containing

The containing() method of Segments instances returns an object describing the segment in the string […]
Original post on front-end.social
front-end.social
December 10, 2025 at 10:02 AM
🦖 NavigationHistoryEntry: key property
🟧 Limited availability

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

The key read-only property of the NavigationHistoryEntry interface returns the key of the history entry, or an empty string if current document is not fully […]
Original post on front-end.social
front-end.social
December 9, 2025 at 7:32 PM
🦖 SourceBuffer: error event
🟧 Limited availability

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

The error event of the SourceBuffer interface is fired when an error occurs during the processing of an appendBuffer() operation. This may happen, for example, if the […]
Original post on front-end.social
front-end.social
December 9, 2025 at 10:10 AM
🦖 FileSystemSyncAccessHandle
✅ Widely available (from Mar 2023)

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

The FileSystemSyncAccessHandle interface of the File System API represents a synchronous handle to a file system entry.

#webdev
FileSystemSyncAccessHandle - Web APIs | MDN
The FileSystemSyncAccessHandle interface of the File System API represents a synchronous handle to a file system entry.
developer.mozilla.org
December 8, 2025 at 7:03 PM
🦖 Symbol.split
✅ Widely available (from Jan 2020)

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/split

The Symbol.split static data property represents the well-known symbol Symbol.split. The String.prototype.split() method looks up this symbol on its […]
Original post on front-end.social
front-end.social
December 8, 2025 at 10:02 AM
🦖 WeakSet.prototype.has()
✅ Widely available (from Sept 2015)

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakSet/has

The has() method of WeakSet instances returns a boolean indicating whether the specified value exists in this WeakSet or not.

#webdev […]
Original post on front-end.social
front-end.social
December 7, 2025 at 7:01 PM
🦖 PresentationConnection
🟧 Limited availability

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

The PresentationConnection interface of the Presentation API provides methods and properties for managing a single presentation. Each presentation connection is represented […]
Original post on front-end.social
front-end.social
December 7, 2025 at 10:11 AM
🦖 HTMLMeterElement: low property
✅ Widely available (from Nov 2015)

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

The low property of the HTMLMeterElement interface represents the low boundary of the element as a floating-point number. It reflects the element's […]
Original post on front-end.social
front-end.social
December 6, 2025 at 7:42 PM
🦖 WorkerGlobalScope: clearTimeout() method
✅ Widely available (from Jul 2015)

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

The clearTimeout() method of the WorkerGlobalScope interface cancels a timeout previously established by calling WorkerGlobalScope […]
Original post on front-end.social
front-end.social
December 6, 2025 at 10:02 AM
🦖 AudioScheduledSourceNode: stop() method
✅ Widely available (from Sept 2020)

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

The stop() method on AudioScheduledSourceNode schedules a sound to cease playback at the specified time. If no time is specified, then […]
Original post on front-end.social
front-end.social
December 5, 2025 at 7:04 PM