method web apis - Robuta Search

https://developer.mozilla.org/en-US/docs/Web/API/Element/querySelector Element: querySelector() method - Web APIs | MDN The querySelector() method of the Element interface returns the first element that is a descendant of the element on which it is invoked that matches the... method web apis element mdn https://developer.mozilla.org/en-US/docs/Web/API/Element/querySelectorAll Element: querySelectorAll() method - Web APIs | MDN The Element method querySelectorAll() returns a static (not live) NodeList representing a list of elements matching the specified group of selectors which are... method web apis element queryselectorall mdn https://developer.mozilla.org/en-US/docs/Web/API/Element/closest Element: closest() method - Web APIs | MDN The closest() method of the Element interface traverses the element and its parents (heading toward the document root) until it finds a node that matches the... method web apis element closest mdn https://developer.mozilla.org/en-US/docs/Web/API/Window/requestAnimationFrame Window: requestAnimationFrame() method - Web APIs | MDN The window.requestAnimationFrame() method tells the browser you wish to perform an animation. It requests the browser to call a user-supplied callback function... method web apis window mdn https://developer.mozilla.org/en-US/docs/Web/API/Worker/postMessage Worker: postMessage() method - Web APIs | MDN The postMessage() method of the Worker interface sends a message to the worker. The first parameter is the data to send to the worker. The data may be any... method web apis worker mdn https://developer.mozilla.org/en-US/docs/Web/API/Document/querySelector Document: querySelector() method - Web APIs | MDN The Document method querySelector() returns the first Element within the document that matches the specified CSS selector, or group of CSS selectors. If no... method web apis document mdn https://developer.mozilla.org/en-US/docs/Web/API/Element/moveBefore Element: moveBefore() method - Web APIs | MDN The moveBefore() method of the Element interface moves a given Node inside the invoking node as a direct child, before a given reference node. method web apis element mdn https://developer.mozilla.org/en-US/docs/Web/API/Element/after Element: after() method - Web APIs | MDN The Element.after() method inserts a set of Node objects or strings in the children list of the Element's parent, just after the Element. Strings are inserted... method web apis element mdn https://developer.mozilla.org/en-US/docs/Web/API/ReadableStreamBYOBReader/releaseLock ReadableStreamBYOBReader: releaseLock() method - Web APIs | MDN The releaseLock() method of the ReadableStreamBYOBReader interface releases the reader's lock on the stream. After the lock is released, the reader is no... method web apis mdn https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto/encrypt SubtleCrypto: encrypt() method - Web APIs | MDN The encrypt() method of the SubtleCrypto interface encrypts data. method web apis encrypt mdn https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams/get URLSearchParams: get() method - Web APIs | MDN The get() method of the URLSearchParams interface returns the first value associated to the given search parameter. method web apis urlsearchparams get mdn https://developer.mozilla.org/en-US/docs/Web/API/URL/parse_static URL: parse() static method - Web APIs | MDN The URL.parse() static method of the URL interface returns a newly created URL object representing the URL defined by the parameters. static method web url parse apis mdn https://developer.mozilla.org/en-US/docs/Web/API/PerformanceObserver/takeRecords PerformanceObserver: takeRecords() method - Web APIs | MDN The takeRecords() method of the PerformanceObserver interface returns the current list of PerformanceEntry objects stored in the performance observer, emptying... method web apis mdn https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams/set URLSearchParams: set() method - Web APIs | MDN The set() method of the URLSearchParams interface sets the value associated with a given search parameter to the given value. If there were several matching... method web apis urlsearchparams set mdn https://developer.mozilla.org/en-US/docs/Web/API/Blob/stream Blob: stream() method - Web APIs | MDN The stream() method of the Blob interface returns a ReadableStream which upon reading returns the data contained within the Blob. method web apis blob stream mdn https://developer.mozilla.org/en-US/docs/Web/API/XPathResult/snapshotItem XPathResult: snapshotItem() method - Web APIs | MDN The snapshotItem() method of the XPathResult interface returns an item of the snapshot collection or null in case the index is not within the range of nodes.... method web apis xpathresult mdn https://developer.mozilla.org/en-US/docs/Web/API/Window/alert Window: alert() method - Web APIs | MDN window.alert() instructs the browser to display a dialog with an optional message, and to wait until the user dismisses the dialog. method web apis window alert mdn https://developer.mozilla.org/en-US/docs/Web/API/TreeWalker/firstChild TreeWalker: firstChild() method - Web APIs | MDN The TreeWalker.firstChild() method moves the current Node to the first visible child of the current node, and returns the found child. If no such child exists,... method web apis treewalker mdn https://developer.mozilla.org/en-US/docs/Web/API/DocumentType/remove DocumentType: remove() method - Web APIs | MDN The DocumentType.remove() method removes a document's doctype. If it is already detached from the document, calling remove() does nothing. method web apis remove mdn https://developer.mozilla.org/en-US/docs/Web/API/FormData/append FormData: append() method - Web APIs | MDN The append() method of the FormData interface appends a new value onto an existing key inside a FormData object, or adds the key if it does not already exist. method web apis append mdn https://developer.mozilla.org/en-US/docs/Web/API/URL/canParse_static URL: canParse() static method - Web APIs | MDN The URL.canParse() static method of the URL interface returns a boolean indicating whether or not an absolute URL, or a relative URL combined with a base URL,... static method web url apis mdn https://developer.mozilla.org/en-US/docs/Web/API/MessagePort/close MessagePort: close() method - Web APIs | MDN The close() method of the MessagePort interface disconnects the port, so it is no longer active. This stops the flow of messages to that port. method web apis close mdn https://developer.mozilla.org/en-US/docs/Web/API/Document/replaceChildren Document: replaceChildren() method - Web APIs | MDN The Document.replaceChildren() method replaces the existing children of a Document with a specified new set of children. method web apis document mdn https://developer.mozilla.org/en-US/docs/Web/API/Location/replace Location: replace() method - Web APIs | MDN The replace() method of the Location interface replaces the current resource with the one at the provided URL. The difference from the assign() method is that... method web apis location replace mdn https://developer.mozilla.org/en-US/docs/Web/API/Performance/clearMeasures Performance: clearMeasures() method - Web APIs | MDN The clearMeasures() method removes all or specific PerformanceMeasure objects from the browser's performance timeline. method web apis performance mdn https://developer.mozilla.org/en-US/docs/Web/API/console/table_static console: table() static method - Web APIs | MDN The console.table() static method displays tabular data as a table. static method web console table apis mdn https://developer.mozilla.org/en-US/docs/Web/API/console/time_static console: time() static method - Web APIs | MDN The console.time() static method starts a timer you can use to track how long an operation takes. You give each timer a unique name, and may have up to 10,000... static method web console time apis mdn https://developer.mozilla.org/en-US/docs/Web/API/DocumentFragment/replaceChildren DocumentFragment: replaceChildren() method - Web APIs | MDN The DocumentFragment.replaceChildren() method replaces the existing children of a DocumentFragment with a specified new set of children. These can be string or... method web apis mdn https://developer.mozilla.org/en-US/docs/Web/API/XSLTProcessor/transformToDocument XSLTProcessor: transformToDocument() method - Web APIs | MDN The transformToDocument() method of the XSLTProcessor interface transforms the provided Node source to a Document using the XSLT stylesheet associated with... method web apis xsltprocessor mdn https://developer.mozilla.org/en-US/docs/Web/API/Performance/getEntriesByType Performance: getEntriesByType() method - Web APIs | MDN The getEntriesByType() method returns an array of PerformanceEntry objects currently present in the performance timeline for a given type. method web apis performance mdn https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto/exportKey SubtleCrypto: exportKey() method - Web APIs | MDN The exportKey() method of the SubtleCrypto interface exports a key: that is, it takes as input a CryptoKey object and gives you the key in an external,... method web apis mdn https://developer.mozilla.org/en-US/docs/Web/API/Performance/setResourceTimingBufferSize Performance: setResourceTimingBufferSize() method - Web APIs | MDN The setResourceTimingBufferSize() method sets the desired size of the browser's resource timing buffer which stores the method web apis performance mdn https://developer.mozilla.org/en-US/docs/Web/API/Document/createEvent Document: createEvent() method - Web APIs | MDN Creates an event of the type specified. The returned object should be first initialized and can then be passed to EventTarget.dispatchEvent. method web apis document mdn https://developer.mozilla.org/en-US/docs/Web/API/Range/intersectsNode Range: intersectsNode() method - Web APIs | MDN The Range.intersectsNode() method returns a boolean indicating whether the given Node intersects the Range. method web apis range mdn https://developer.mozilla.org/en-US/docs/Web/API/AbortController/abort AbortController: abort() method - Web APIs | MDN The abort() method of the AbortController interface aborts an asynchronous operation before it has completed. This is able to abort fetch requests, the... method web apis abort mdn https://developer.mozilla.org/en-US/docs/Web/API/Event/preventDefault Event: preventDefault() method - Web APIs | MDN The preventDefault() method of the Event interface tells the user agent that the event is being explicitly handled, so its default action, such as page... method web apis event mdn https://developer.mozilla.org/en-US/docs/Web/API/Range/cloneRange Range: cloneRange() method - Web APIs | MDN The Range.cloneRange() method returns a Range object with boundary points identical to the cloned Range. method web apis range mdn https://developer.mozilla.org/en-US/docs/Web/API/Element/ariaNotify Element: ariaNotify() method - Web APIs | MDN The ariaNotify() method of the Element interface queues a string of text to be announced by a screen reader. method web apis element mdn https://developer.mozilla.org/en-US/docs/Web/API/CSSTransformComponent/toMatrix CSSTransformComponent: toMatrix() method - Web APIs | MDN The toMatrix() method of the CSSTransformComponent interface returns a DOMMatrix object. method web apis mdn https://developer.mozilla.org/en-US/docs/Web/API/Node/normalize Node: normalize() method - Web APIs | MDN The normalize() method of the Node interface puts the specified node and all of its sub-tree into a normalized form. In a normalized sub-tree, no text nodes in... method web apis node normalize mdn https://developer.mozilla.org/en-US/docs/Web/API/NamedNodeMap/removeNamedItemNS NamedNodeMap: removeNamedItemNS() method - Web APIs | MDN The removeNamedItemNS() method of the NamedNodeMap interface removes the Attr corresponding to the given namespace and local name from the map. method web apis mdn https://developer.mozilla.org/en-US/docs/Web/API/Request/text Request: text() method - Web APIs | MDN The text() method of the Request interface reads the request body and returns it as a promise that resolves with a String. The response is always decoded using... method web apis request text mdn https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams/forEach URLSearchParams: forEach() method - Web APIs | MDN The forEach() method of the URLSearchParams interface allows iteration through all values contained in this object via a callback function. method web apis urlsearchparams foreach mdn https://developer.mozilla.org/en-US/docs/Web/API/Request/json Request: json() method - Web APIs | MDN The json() method of the Request interface reads the request body and returns it as a promise that resolves with the result of parsing the body text as JSON. method web apis request json mdn https://developer.mozilla.org/en-US/docs/Web/API/NamedNodeMap/setNamedItemNS NamedNodeMap: setNamedItemNS() method - Web APIs | MDN The setNamedItemNS() method of the NamedNodeMap interface puts the Attr identified by its name in the map. If there was already an Attr with the same name in... method web apis mdn https://developer.mozilla.org/en-US/docs/Web/API/Element/getAttributeNames Element: getAttributeNames() method - Web APIs | MDN The getAttributeNames() method of the Element interface returns the attribute names of the element as an Array of strings. If the element has no attributes it... method web apis element mdn https://developer.mozilla.org/en-US/docs/Web/API/Response/arrayBuffer Response: arrayBuffer() method - Web APIs | MDN The arrayBuffer() method of the Response interface takes a Response stream and reads it to completion. It returns a promise that resolves with an ArrayBuffer. method web apis response arraybuffer mdn https://developer.mozilla.org/en-US/docs/Web/API/Node/insertBefore Node: insertBefore() method - Web APIs | MDN The insertBefore() method of the Node interface inserts a node before a reference node as a child of a specified parent node. method web apis node mdn https://developer.mozilla.org/en-US/docs/Web/API/Document/getElementsByTagNameNS Document: getElementsByTagNameNS() method - Web APIs | MDN Returns a list of elements with the given tag name belonging to the given namespace. The complete document is searched, including the root node. method web apis document mdn https://developer.mozilla.org/en-US/docs/Web/API/Document/querySelectorAll Document: querySelectorAll() method - Web APIs | MDN The Document method querySelectorAll() returns a static (not live) NodeList representing a list of the document's elements that match the specified group of... method web apis document queryselectorall mdn https://developer.mozilla.org/en-US/docs/Web/API/TreeWalker/parentNode TreeWalker: parentNode() method - Web APIs | MDN The TreeWalker.parentNode() method moves the current Node to the first visible ancestor node in the document order, and returns the found node. If no such node... method web apis treewalker mdn https://developer.mozilla.org/en-US/docs/Web/API/ReadableStreamDefaultReader/cancel ReadableStreamDefaultReader: cancel() method - Web APIs | MDN The cancel() method of the ReadableStreamDefaultReader interface returns a Promise that resolves when the stream is canceled. Calling this method signals a... method web apis readablestreamdefaultreader cancel mdn https://developer.mozilla.org/en-US/docs/Web/API/Storage/clear Storage: clear() method - Web APIs | MDN The clear() method of the Storage interface clears all keys stored in a given Storage object. method web apis storage clear mdn https://developer.mozilla.org/en-US/docs/Web/API/Event/stopImmediatePropagation Event: stopImmediatePropagation() method - Web APIs | MDN The stopImmediatePropagation() method of the Event interface prevents other listeners of the same event from being called. method web apis event mdn https://developer.mozilla.org/en-US/docs/Web/API/Range/setStart Range: setStart() method - Web APIs | MDN The Range.setStart() method sets the start position of a Range. method web apis range mdn https://developer.mozilla.org/en-US/docs/Web/API/Document/createNodeIterator Document: createNodeIterator() method - Web APIs | MDN The Document.createNodeIterator() method returns a new NodeIterator object. method web apis document mdn https://developer.mozilla.org/en-US/docs/Web/API/Document/createNSResolver Document: createNSResolver() method - Web APIs | MDN The createNSResolver() method of the Document interface used to create a custom XPathNSResolver object. It now returns the input as-is and is only kept for... method web apis document mdn https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams/keys URLSearchParams: keys() method - Web APIs | MDN The keys() method of the URLSearchParams interface returns an iterator allowing iteration through all keys contained in this object. The keys are strings. method web apis urlsearchparams keys mdn https://developer.mozilla.org/en-US/docs/Web/API/XSLTProcessor/transformToFragment XSLTProcessor: transformToFragment() method - Web APIs | MDN The transformToFragment() method of the XSLTProcessor interface transforms a provided Node source to a DocumentFragment using the XSLT stylesheet associated... method web apis xsltprocessor mdn https://developer.mozilla.org/en-US/docs/Web/API/Range/isPointInRange Range: isPointInRange() method - Web APIs | MDN The isPointInRange() method of the Range interface determines whether a specified point is within the Range. The point is specified by a reference node and an... method web apis range mdn https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams/append URLSearchParams: append() method - Web APIs | MDN The append() method of the URLSearchParams interface appends a specified key/value pair as a new search parameter. method web apis urlsearchparams append mdn https://developer.mozilla.org/en-US/docs/Web/API/Blob/bytes Blob: bytes() method - Web APIs | MDN The bytes() method of the Blob interface returns a Promise that resolves with a Uint8Array containing the contents of the blob as an array of bytes. method web apis blob bytes mdn https://developer.mozilla.org/en-US/docs/Web/API/Node/contains Node: contains() method - Web APIs | MDN The contains() method of the Node interface returns a boolean value indicating whether a node is a descendant of a given node, that is the node itself, one of... method web apis node contains mdn https://developer.mozilla.org/en-US/docs/Web/API/Text/splitText Text: splitText() method - Web APIs | MDN The splitText() method of the Text interface breaks the Text node into two nodes at the specified offset, keeping both nodes in the tree as siblings. method web apis text mdn https://developer.mozilla.org/en-US/docs/Web/API/Element/insertAdjacentHTML Element: insertAdjacentHTML() method - Web APIs | MDN The insertAdjacentHTML() method of the Element interface parses the specified input as HTML or XML and inserts the resulting nodes into the DOM tree at a... method web apis element mdn https://developer.mozilla.org/en-US/docs/Web/API/StylePropertyMapReadOnly/get StylePropertyMapReadOnly: get() method - Web APIs | MDN The get() method of the StylePropertyMapReadOnly interface returns a CSSStyleValue object for the first value of the specified property. method web apis get mdn https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/toBlob HTMLCanvasElement: toBlob() method - Web APIs | MDN The HTMLCanvasElement.toBlob() method creates a Blob object representing the image contained in the canvas. This file may be cached on the disk or stored in... method web apis mdn https://developer.mozilla.org/en-US/docs/Web/API/Range/setStartBefore Range: setStartBefore() method - Web APIs | MDN The Range.setStartBefore() method sets the start position of a Range relative to another Node. The parent Node of the start of the Range will be the same as... method web apis range mdn https://developer.mozilla.org/en-US/docs/Web/API/MutationObserver/observe MutationObserver: observe() method - Web APIs | MDN The MutationObserver method observe() configures the MutationObserver callback to begin receiving notifications of changes to the DOM that match the given... method web apis observe mdn https://developer.mozilla.org/en-US/docs/Web/API/Document/evaluate Document: evaluate() method - Web APIs | MDN The evaluate() method of the Document interface selects elements based on the XPath expression given in parameters. method web apis document evaluate mdn https://developer.mozilla.org/en-US/docs/Web/API/Response/json_static Response: json() static method - Web APIs | MDN The json() static method of the Response interface returns a Response that contains the provided JSON data as body, and a Content-Type header which is set to... static method web response json apis mdn https://developer.mozilla.org/en-US/docs/Web/API/URLPattern/test URLPattern: test() method - Web APIs | MDN The test() method of the URLPattern interface takes a URL string or object of URL parts, and returns a boolean indicating if the given input matches the... method web apis test mdn https://developer.mozilla.org/en-US/docs/Web/API/Range/selectNodeContents Range: selectNodeContents() method - Web APIs | MDN The Range.selectNodeContents() method sets the Range to contain the contents of a Node. method web apis range mdn https://developer.mozilla.org/en-US/docs/Web/API/ByteLengthQueuingStrategy/size ByteLengthQueuingStrategy: size() method - Web APIs | MDN The size() method of the ByteLengthQueuingStrategy interface returns the given chunk's byteLength property. method web apis size mdn https://developer.mozilla.org/en-US/docs/Web/API/Document/createProcessingInstruction Document: createProcessingInstruction() method - Web APIs | MDN createProcessingInstruction() generates a new processing instruction node and returns it. method web apis document mdn https://developer.mozilla.org/en-US/docs/Web/API/NamedNodeMap/getNamedItem NamedNodeMap: getNamedItem() method - Web APIs | MDN The getNamedItem() method of the NamedNodeMap interface returns the Attr corresponding to the given name, or null if there is no corresponding attribute. method web apis mdn https://developer.mozilla.org/en-US/docs/Web/API/Blob/slice Blob: slice() method - Web APIs | MDN The slice() method of the Blob interface creates and returns a new Blob object which contains data from a subset of the blob on which it's called. method web apis blob slice mdn https://developer.mozilla.org/en-US/docs/Web/API/Node/replaceChild Node: replaceChild() method - Web APIs | MDN The replaceChild() method of the Node interface replaces a child node within the given (parent) node. method web apis node mdn https://developer.mozilla.org/en-US/docs/Web/API/Performance/now Performance: now() method - Web APIs | MDN The performance.now() method returns a high resolution timestamp in milliseconds. It represents the time elapsed since Performance.timeOrigin (the time when... method web apis performance mdn https://developer.mozilla.org/en-US/docs/Web/API/CSS/supports_static CSS: supports() static method - Web APIs | MDN The CSS.supports() static method returns a boolean value indicating if the browser supports a given CSS feature, or not. static method web css supports apis mdn https://developer.mozilla.org/en-US/docs/Web/API/XPathEvaluator/evaluate XPathEvaluator: evaluate() method - Web APIs | MDN The evaluate() method of the XPathEvaluator interface executes an XPath expression on the given node or document and returns an XPathResult. method web apis evaluate mdn https://developer.mozilla.org/en-US/docs/Web/API/XSLTProcessor/removeParameter XSLTProcessor: removeParameter() method - Web APIs | MDN method web apis xsltprocessor mdn https://developer.mozilla.org/en-US/docs/Web/API/MessagePort/start MessagePort: start() method - Web APIs | MDN The start() method of the MessagePort interface starts the sending of messages queued on the port. This method is only needed when using... method web apis start mdn https://developer.mozilla.org/en-US/docs/Web/API/Response/error_static Response: error() static method - Web APIs | MDN The error() static method of the Response interface returns a new Response object associated with a network error. static method web response error apis mdn https://developer.mozilla.org/en-US/docs/Web/API/CSSNumericValue/toSum CSSNumericValue: toSum() method - Web APIs | MDN The toSum() method of the CSSNumericValue interface converts the object's value to a CSSMathSum object to values of the specified unit. method web apis mdn https://developer.mozilla.org/en-US/docs/Web/API/Blob/text Blob: text() method - Web APIs | MDN The text() method of the Blob interface returns a Promise that resolves with a string containing the contents of the blob, interpreted as UTF-8. method web apis blob text mdn https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation/createDocumentType DOMImplementation: createDocumentType() method - Web APIs | MDN The DOMImplementation.createDocumentType() method returns a DocumentType object which can either be used with DOMImplementation.createDocument upon document... method web apis mdn https://developer.mozilla.org/en-US/docs/Web/API/FormData/has FormData: has() method - Web APIs | MDN The has() method of the FormData interface returns whether a FormData object contains a certain key. method web apis mdn https://developer.mozilla.org/en-US/docs/Web/API/NodeList/item NodeList: item() method - Web APIs | MDN Returns a node from a NodeList by index. This method doesn't throw exceptions as long as you provide arguments. A value of null is returned if the index is out... method web apis item mdn https://developer.mozilla.org/en-US/docs/Web/API/Node/compareDocumentPosition Node: compareDocumentPosition() method - Web APIs | MDN The compareDocumentPosition() method of the Node interface reports the position of its argument node relative to the node on which it is called. method web apis node mdn https://developer.mozilla.org/en-US/docs/Web/API/console/timeLog_static console: timeLog() static method - Web APIs | MDN The console.timeLog() static method logs the current value of a timer that was previously started by calling console.time(). static method web console apis mdn https://developer.mozilla.org/en-US/docs/Web/API/Navigator/sendBeacon Navigator: sendBeacon() method - Web APIs | MDN The navigator.sendBeacon() method asynchronously sends an HTTP POST request containing a small amount of data to a web server. method web apis navigator mdn https://developer.mozilla.org/en-US/docs/Web/API/Window/btoa Window: btoa() method - Web APIs | MDN The btoa() method of the Window interface creates a Base64-encoded ASCII string from a binary string (i.e., a string in which each character in the string is... method web apis window mdn https://developer.mozilla.org/en-US/docs/Web/API/Performance/getEntries Performance: getEntries() method - Web APIs | MDN The getEntries() method returns an array of all PerformanceEntry objects currently present in the performance timeline. method web apis performance mdn https://developer.mozilla.org/en-US/docs/Web/API/DocumentType/after DocumentType: after() method - Web APIs | MDN The DocumentType.after() method inserts a set of Node objects or strings in the children list of the DocumentType's parent, just after the DocumentType.... method web apis mdn https://developer.mozilla.org/en-US/docs/Web/API/TreeWalker/nextSibling TreeWalker: nextSibling() method - Web APIs | MDN The TreeWalker.nextSibling() method moves the current Node to its next sibling, if any, and returns the found sibling. If there is no such node, it returns... method web apis treewalker mdn https://developer.mozilla.org/en-US/docs/Web/API/CSSTransformValue/toMatrix CSSTransformValue: toMatrix() method - Web APIs | MDN The toMatrix() method of the CSSTransformValue interface returns a DOMMatrix object. method web apis mdn https://developer.mozilla.org/en-US/docs/Web/API/Document/createComment Document: createComment() method - Web APIs | MDN createComment() creates a new comment node, and returns it. method web apis document mdn https://developer.mozilla.org/en-US/docs/Web/API/NamedNodeMap/setNamedItem NamedNodeMap: setNamedItem() method - Web APIs | MDN The setNamedItem() method of the NamedNodeMap interface puts the Attr identified by its name in the map. If there is already an Attr with the same name in the... method web apis mdn https://developer.mozilla.org/en-US/docs/Web/API/Element/getElementsByTagNameNS Element: getElementsByTagNameNS() method - Web APIs | MDN The Element.getElementsByTagNameNS() method returns a live HTMLCollection of elements with the given tag name belonging to the given namespace. It is similar... method web apis element mdn