What does javascript element mean?

王林
Release: 2023-05-12 15:32:37
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JavaScript elements refer to various objects created in the JavaScript language, including tags, forms and user interface components in HTML documents. JavaScript elements can be created, manipulated and controlled through code, making web pages more interactive and dynamic.

JavaScript is an object-based programming language that can achieve various functions and effects by creating and manipulating element objects. The following are several common JavaScript element objects:

  1. Document Object Model (DOM) element

DOM elements refer to various tags in HTML documents, such as < div>,

, , etc. By accessing DOM elements, you can modify, add, and delete the content of the web page, thereby realizing the production and development of dynamic web pages.

In JavaScript, accessing DOM elements usually uses the getElementById() function or querySelector() function. For example, the following code can obtain the

element with the id "myDiv":

var elem = document.getElementById("myDiv");
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Among them, document is a global object in JavaScript, representing the current HTML document. The getElementById() function can obtain the corresponding DOM element through the id attribute of the element.

  1. Form elements

Form elements refer to various controls in HTML forms, such as ,