When creating an element and assigning it an ID, you have to insert the element into the document tree with Node. Note that the id parameter is case-sensitive, so document.getElementById("Main") will return null instead of the element because "M" and "m" are different for the purposes of this method.Įlements not in the document are not searched by getElementById(). If there is no element with the given id, this function returns null. getElementById ( "test1" ) // throw error // Uncaught TypeError: parentDOM.getElementById is not a function getElementById ( "parent-id" ) const test1 = parentDOM. Document hello word1 hello word2 hello word3 hello word4 const parentDOM = document. quer圜ommandSupported() Non-standard Deprecated.quer圜ommandState() Non-standard Deprecated.quer圜ommandEnabled() Non-standard Deprecated.enableStyleSheetsForSet() Non-standard Deprecated.createTouchList() Non-standard Deprecated.The getElementsB圜lassName () method returns a NodeList object. selectedStyleSheetSet Non-standard Deprecated The getElementsB圜lassName () method returns a collection of child elements with a given class name. preferredStyleSheetSet Non-standard Deprecated.lastStyleSheetSet Non-standard Deprecated.
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