HTML DOM Document querySelectorAll()
Example
Select all elements with class="example":
document.querySelectorAll(".example");
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More examples below.
Description
The querySelectorAll() method returns all elements that matches a CSS selector(s).
The querySelectorAll() method returns a NodeList.
The querySelectorAll() method throws a SYNTAX_ERR exception if the selector(s) is invalid
Tutorials:
The JavaScript Node List Tutorial
QuerySelector Methods:
The Element querySelector() Method
The Element querySelectorAll() Method
The Document querySelector() Method
The Document querySelectorAll() Method
GetElement Methods:
The Document getElementById() Method
NodeList
A NodeList is an array-like collection (list) of nodes.
The nodes in the list can be accessed by index. The index starts at 0.
The length Poperty returns the number of nodes in the list.
Syntax
document.querySelectorAll(CSS selectors)
Parameters
| Parameter | Description |
| CSS selectors | Required. One or more CSS selectors. CSS selectors select HTML elements based on id, classes, types, attributes, values of attributes etc. For a full list, go to our CSS Selectors Reference. For multiple selectors, separate each selector with a comma (See "More Examples"). |
Return Value
| Type | Description |
| Object | A NodeList object with the elements that matches the CSS selector(s). If no matches are found, an empty NodeList object is returned. |
More Examples
Add a background color to the first <p> element:
const nodeList= document.querySelectorAll("p");
nodeList[0].style.backgroundColor = "red";
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Add a background color to the first <p> element with class="example":
const nodeList = document.querySelectorAll("p.example");
nodeList[0].style.backgroundColor = "red";
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Number of elements with class="example":
let numb = document.querySelectorAll(".example").length;
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Set the background color of all elements with class="example":
const nodeList = document.querySelectorAll(".example");
for (let i = 0; i < nodeList.length; i++) {
nodeList[i].style.backgroundColor = "red";
}
Try it Yourself »
Set the background color of all <p> elements:
let nodeList = document.querySelectorAll("p");
for (let i = 0; i < nodeList.length; i++) {
nodeList[i].style.backgroundColor = "red";
}
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Set the border of all <a> elements with a "target" attribute:
const nodeList = document.querySelectorAll("a[target]");
for (let i = 0; i < nodeList.length; i++) {
nodeList[i].style.border = "10px solid red";
}
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Set the background color of every <p> element where the parent is a <div> element:
const nodeList = document.querySelectorAll("div > p");
for (let i = 0; i < nodeList.length; i++) {
nodeList[i].style.backgroundColor = "red";
}
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Set the background color of all <h3> and <span> elements:
const nodeList = document.querySelectorAll("h3, span");
for (let i = 0; i < nodeList.length; i++) {
nodeList[i].style.backgroundColor = "red";
}
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Browser Support
document.querySelectorAll() is a DOM Level 3 (2004) feature.
It is fully supported in all modern browsers:
| Chrome | Edge | Firefox | Safari | Opera | IE |
| Yes | Yes | Yes | Yes | Yes | 11 |
