What are the methods to find elements in js

JavaScript provides a variety of methods to find elements: id selector: document.getElementById("id"), find elements based on the id attribute. Class selector: document.getElementsByClassName("class"), finds elements based on the class attribute. Tag selector: document.getElementsByTagName("tag"), finds elements based on tag names. Universal selector: document.querySelectorAll("selector"), uses CSS selectors to find elements.

Methods to find elements in JS

In JavaScript, there are several ways to find the DOM (Document Object Element in model):

id Selector:

• document.getElementById("id"): According to the id of the element Attributes to find elements.

Class selector:

• document.getElementsByClassName("class"): Find elements based on their class attribute .

Tag selector:

• ##document.getElementsByTagName("tag"): Find elements based on their tag names .

Universal selectors:

##document.querySelectorAll("selector"):
• Use CSS selectors to find elements.

Specific usage:

getElementById:

<code class="javascript">const element = document.getElementById("myElement");</code>

getElementsByClassName:

<code class="javascript">const elements = document.getElementsByClassName("myClass");</code>

getElementsByTagName:

<code class="javascript">const elements = document.getElementsByTagName("p");</code>

querySelectorAll:

<code class="javascript">const elements = document.querySelectorAll(".myClass p");</code>

Other methods:

Except In addition to the above methods, there are some other methods to find elements, such as:

document.querySelector("selector"):
• Similar to querySelectorAll, but only returns the first match Elements.
element.children:
• Returns all child elements of the element.
element.parentElement:
• Returns the parent element of the element.

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