- October 9, 2026The removeItem() method of the Storage interface, when passed a key name, will remove that key from the given Storage…
- October 9, 2026The Selection.anchorOffset read-only property returns the number of characters that the selection's anchor is offset within the Selection.anchorNode if said…
- October 9, 2026The customElementRegistry read-only property of the ShadowRoot interface returns the CustomElementRegistry object associated with this shadow root, or null if…
- October 9, 2026The MutationObserver method takeRecords() returns a list of all matching DOM changes that have been detected but not yet processed…
- October 9, 2026The Navigator.appVersion read-only property of the Navigator interface returns a string representing version information about the browser.
- October 9, 2026The textContent property of the Node interface represents the text content of the node and its descendants.
- October 9, 2026The clearResourceTimings() method removes all performance entries with an entryType of "resource" from the browser's performance timeline and sets the…
- October 9, 2026The Range.getBoundingClientRect() method returns a DOMRect object that bounds the contents of the range; this is a rectangle enclosing the…
- October 9, 2026The arrayBuffer() method of the Request interface reads the request body and returns it as a promise that resolves with…
- October 9, 2026The text() method of the Response interface takes a Response stream and reads it to completion.
- October 9, 2026The ancestorOrigins read-only property of the Location interface is a static DOMStringList containing, in reverse order, the origins of all…
- October 9, 2026The back() method of the History interface causes the browser to move back one page in the session history.
- October 9, 2026The returnValue property of the HTMLDialogElement interface is a string representing the return value for a dialog element when it's…
- October 9, 2026The HTMLFormElement.acceptCharset property represents the character encoding for the given form element.
- October 9, 2026The alt property of the HTMLInputElement interface defines the textual label for the button for users and user agents who…
- October 9, 2026The shadowRootCustomElementRegistry property of the HTMLTemplateElement interface reflects the value of the shadowrootcustomelementregistry attribute of the associated template element.
- October 9, 2026The rootMargin read-only property of the IntersectionObserver interface is a string with syntax similar to that of the CSS margin…
- October 9, 2026The Headers.forEach() method executes a callback function once per each key/value pair in the Headers object.
- October 9, 2026The read-only composed property of the Event interface returns a boolean value which indicates whether or not the event will…
- October 9, 2026The readAsArrayBuffer() method of the FileReader interface is used to start reading the contents of a specified Blob or File.
- October 9, 2026The FormData.entries() method returns an iterator which iterates through all key/value pairs contained in the FormData.
- October 9, 2026The activeElement read-only property of the Document interface returns the Element within the DOM that is receiving keyboard events such…
- October 9, 2026The moveBefore() method of the DocumentFragment interface moves a given Node inside the invoking DocumentFragment as a direct child, before…
- October 9, 2026The item() method of the DOMTokenList interface returns an item in the list, determined by its position in the list,…
- October 9, 2026The closest() method of the Element interface traverses the element and its parents (heading toward the document root) until it…
- October 9, 2026The cssText property of the CSSStyleDeclaration interface returns or sets the text of the element's inline style declaration only.
- October 9, 2026The read-only CSSStyleSheet property ownerRule returns the CSSImportRule corresponding to the @import at-rule which imported the stylesheet into the document.
- October 9, 2026The bytes() method of the Blob interface returns a Promise that resolves with a Uint8Array containing the contents of the…
- October 9, 2026The writeText() method of the Clipboard interface writes the specified text to the system clipboard, returning a Promise that is…
- October 9, 2026The throwIfAborted() method throws the signal's abort reason if the signal has been aborted; otherwise it does nothing.
- October 9, 2026The window.requestAnimationFrame() method tells the browser you wish to perform an animation.
- October 9, 2026The Window interface's matchMedia() method returns a new MediaQueryList object that can then be used to determine if the document…
- October 9, 2026The toString() method of the URLSearchParams interface returns a query string suitable for use in a URL.
- October 9, 2026The set() method of the URLSearchParams interface sets the value associated with a given search parameter to the given value.
- October 9, 2026The URLSearchParams() constructor creates and returns a new URLSearchParams object.
- October 9, 2026The URL.canParse() static method of the URL interface returns a boolean indicating whether or not an absolute URL, or a…
- October 9, 2026The createObjectURL() static method of the URL interface creates a string containing a blob URL pointing to the object given…
- October 9, 2026The setItem() method of the Storage interface, when passed a key name and value, will add that key to the…
- October 9, 2026The getItem() method of the Storage interface, when passed a key name, will return that key's value, or null if…
- October 9, 2026The adoptedStyleSheets property of the ShadowRoot interface sets an array of constructed stylesheets to be used by the shadow DOM…
- October 9, 2026The clonable read-only property of the ShadowRoot interface returns true if the shadow root is clonable, and false otherwise.
- October 9, 2026The getRangeAt() method of the Selection interface returns a range object representing a currently selected range.
- October 9, 2026The Selection.anchorNode read-only property returns the Node in which the selection begins.
- October 9, 2026The json() method of the Response interface takes a Response stream and reads it to completion.
- October 9, 2026The Response() constructor creates a new Response object.
- October 9, 2026The ResizeObserver constructor creates a new ResizeObserver object, which can be used to report changes to the content or border…
- October 9, 2026The observe() method of the ResizeObserver interface starts observing the specified Element or SVGElement.
- October 9, 2026The formData() method of the Request interface reads the request body and returns it as a promise that resolves with…
- October 9, 2026The json() method of the Request interface reads the request body and returns it as a promise that resolves with…
- October 9, 2026The Request() constructor creates a new Request object.
- October 9, 2026Warning: This method parses its input as HTML or XML, writing the result into a DocumentFragment that might subsequently be…
- October 9, 2026The Range.selectNodeContents() method sets the Range to contain the contents of a Node.
- October 9, 2026The observe() method of the PerformanceObserver interface is used to specify the set of performance entry types to observe.
- October 9, 2026The measure() method creates a named PerformanceMeasure object representing a time measurement between two marks in the browser's performance timeline.
- October 9, 2026The PerformanceObserver() constructor creates a new PerformanceObserver object with the given observer callback.
- October 9, 2026The mark() method creates a named PerformanceMark object representing a high resolution timestamp marker in the browser's performance timeline.
- October 9, 2026The forEach() method of the NodeList interface calls the callback given in parameter once for each value pair in the…
- October 9, 2026Returns a node from a NodeList by index.
- October 9, 2026The appendChild() method of the Node interface adds a node to the end of the list of children of a…
- October 9, 2026The removeChild() method of the Node interface removes a child node from the DOM and returns the removed node.
- October 9, 2026The onLine property of the Navigator interface returns whether the device is connected to the network, with true meaning online…
- October 9, 2026The clipboard read-only property of the Navigator interface returns a Clipboard object used to read and write the clipboard's contents.
- October 9, 2026The MutationObserver method observe() configures the MutationObserver callback to begin receiving notifications of changes to the DOM that match the…
- October 9, 2026The DOM MutationObserver() constructor — part of the MutationObserver interface — creates and returns a new observer which invokes a…
- October 9, 2026The MutationObserver method disconnect() tells the observer to stop watching for mutations.
- October 9, 2026The reload() method of the Location interface reloads the current URL, like the Refresh button.
- October 9, 2026The assign() method of the Location interface causes the window to load and display the document at the URL specified.
- October 9, 2026The root read-only property of the IntersectionObserver interface identifies the Element or Document whose bounds are treated as the bounding…
- October 9, 2026The observe() method of the IntersectionObserver interface adds an element to the set of target elements being watched by the…
- October 9, 2026The IntersectionObserver() constructor creates and returns a new IntersectionObserver object.
- October 9, 2026The content property of the HTMLTemplateElement interface returns the template element's template contents as a DocumentFragment.
- October 9, 2026The shadowRootClonable property reflects the value of the shadowrootclonable attribute of the associated template element.
- October 9, 2026The checkValidity() method of the HTMLInputElement interface returns a boolean value which indicates if the element meets any constraint validation…
- October 9, 2026The accept property of the HTMLInputElement interface reflects the input element's accept attribute, generally a comma-separated list of unique file…
- October 9, 2026The HTMLFormElement method requestSubmit() requests that the form be submitted using a specific submit button.
- October 9, 2026The checkValidity() method of the HTMLFormElement interface returns a boolean value which indicates if all associated controls meet any constraint…
- October 9, 2026The showModal() method of the HTMLDialogElement interface displays the dialog as a modal dialog, over the top of any other…
- October 9, 2026The close() method of the HTMLDialogElement interface closes the dialog.
- October 9, 2026The HTMLCollection method item() returns the element located at the specified offset into the collection.
- October 9, 2026The namedItem() method of the HTMLCollection interface returns the first Element in the collection whose id or name attribute match…
- October 9, 2026The replaceState() method of the History interface modifies the current history entry, replacing it with the state object and URL…
- October 9, 2026The pushState() method of the History interface adds an entry to the browser's session history stack.
- October 9, 2026The delete() method of the Headers interface deletes a header from the current Headers object.
- October 9, 2026The Headers() constructor creates a new Headers object.
- October 9, 2026The append() method of the Headers interface appends a new value onto an existing header inside a Headers object, or…
- October 9, 2026The get() method of the FormData interface returns the first value associated with a given key from within a FormData…
- October 9, 2026The append() method of the FormData interface appends a new value onto an existing key inside a FormData object, or…
- October 9, 2026The FormData() constructor creates a new FormData object.
- October 9, 2026The readAsText() method of the FileReader interface is used to read the contents of the specified Blob or File.
- October 9, 2026The readAsDataURL() method of the FileReader interface is used to read the contents of the specified Blob or File.
- October 9, 2026The File() constructor creates a new File object instance.
- October 9, 2026The lastModified read-only property of the File interface provides the last modified date of the file as the number of…
- October 9, 2026The dispatchEvent() method of the EventTarget sends an Event to the object, (synchronously) invoking the affected event listeners in the…
- October 9, 2026The removeEventListener() method of the EventTarget interface removes an event listener previously registered with EventTarget.addEventListener() from the target.
- October 9, 2026The stopPropagation() method of the Event interface prevents further propagation of the current event in the capturing and bubbling phases.
- October 9, 2026The addEventListener() method of the EventTarget interface sets up a function that will be called whenever the specified event is…
- October 9, 2026The preventDefault() method of the Event interface tells the user agent that the event is being explicitly handled, so its…
- October 9, 2026The cancelable read-only property of the Event interface indicates whether the event can be canceled, and therefore prevented as if…
- October 9, 2026Warning: This method can take attribute values that are parsed as HTML, a script, or as a script URL, depending…
- October 9, 2026The read-only classList property of the Element interface contains a live DOMTokenList collection representing the class attribute of the element.
