javascript getelementsbyclassname

DomDOM: Document Object model; Node Element node: The atoms of the DOM are element nodes. Elements such as Text nodes: In XHTML documents, text nodes are always contained within an element node. Attribute node: The attribute node is used to make a more specific description of the element. For example, almost every element has a title attribute, and we can use this property to give an accurate description of what is contained in the element: In the DOM, title= "A gentle reminder" is an at

), representing the entire HTML page. Also, the Doument object is a property of the Window object and can therefore be accessed as a global object. Document.firstchild==html. Document.body==body. Document.doctype---> To Find elements: getElementById (), getElementsByTagName (), Getelementsbyclassname ().Document write: Write (), Writeln (), open (), close ()Element type:GetAttribute (), get the attribute for class, use "class" instead of classname, an

node for each HTML attribute.More specifically, we refer to the table: Type Value Description Common Element_node 1 ELEMENT node * Attribute_node 2 Attribute node * Text_node 3 Text node * Cdata_section_node 4 CDATA section Entity_reference_node 5 Entity reference Entity_node 6 Entity

This article explains the this keyword in JavaScript using the image explanation. What does JavaScriptthis point? You can get the desired answer from this article. For more information, see JavaScript as a scripting language. It supports functional programming, closures, prototype-based inheritance, and other advanced functions. JavaScript seems to be easy to get

In-depth analysis of the creation of objects in Javascript this small series is the most popular in my blogArticleSome bloggers urged me to finish my next article. Yesterday and today I found that an article could not finish my next half, so I divided the next article I was going to write into two parts. In the previous article of this topic, I talked about three ways to create objects. Finally, I understood how to create

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Sometimes, when writing JavaScript to Your webpage, you need to decide whether to use an existing available JavaScript library or write all the code by yourself. Each of them has its own advantages and disadvantages, so no method is absolutely correct for everyone. You must decide which of the two methods to write your JavaScript code. To help you make a wise dec

[JavaScript tutorial] JavaScript usage JavaScript usage The script in HTML must be located between the script tag and the script tag. Scripts that can be placed on HTML pagesAnd. Script tag To insert JavaScript into the HTML page, use the script tag. Script and script tell JavaScri