# HTML DOM querySelectorAll() Method

Document Object

## Example

Get all elements in the document with class="example":

var x = document.querySelectorAll(".example");
Try it yourself »

More "Try it Yourself" examples below.

## Definition and Usage

The querySelectorAll() method returns all elements in the document that matches a specified CSS selector(s), as a static NodeList object.

The NodeList object represents a collection of nodes. The nodes can be accessed by index numbers. The index starts at 0.

Tip: You can use the length property of the NodeList object to determine the number of elements that matches the specified selector, then you can loop through all elements and extract the info you want.

For more information about CSS Selectors, visit our CSS Selectors Tutorial and our CSS Selectors Reference.

## Browser Support

The numbers in the table specifies the first browser version that fully supports the method.

Method |  |  |  |  |
--- | --- | --- | --- | --- | ---
querySelectorAll() | 4.0 | 9.0 | 3.5 | 3.2 | 10.0

Note: Internet Explorer 8 has support for CSS2 selectors. IE9 and later versions have support for CSS3 as well.

## Syntax

document.querySelectorAll(CSS selectors)

## Parameter Values

Parameter | Type | Description
--- | --- | ---
CSS selectors | String | Required. Specifies one or more CSS selectors to match the element. These are used to select HTML elements based on their id, classes, types, attributes, values of attributes, etc. For multiple selectors, separate each selector with a comma. Tip: For a list of all CSS Selectors, look at our CSS Selectors Reference.

## Technical Details

DOM Version: | Selectors Level 1 Document Object
Return Value: | A NodeList object, representing all elements in the document that matches the specified CSS selector(s). The NodeList is a static collection, meaning that changes in the DOM has NO effect in the collection. Throws a SYNTAX_ERR exception if the selector(s) is invalid

## More Examples

## Example

Get all <p> elements in the document, and set the background color of the first <p> element (index 0):

// Get all <p> elements in the document
var x = document.querySelectorAll("p");
// Set the background color of the first <p> element
x[0].style.backgroundColor = "red";
Try it yourself »

## Example

Get all <p> elements in the document with class="example", and set the background of the first <p> element:

// Get all <p> elements in the document with class="example"
var x = document.querySelectorAll("p.example");
// Set the background color of the first <p> element with class="example" (index 0)
x[0].style.backgroundColor = "red";
Try it yourself »

## Example

Find out how many elements with class="example" there are in the document (using the length property of the NodeList object):

var x = document.querySelectorAll(".example").length;
Try it yourself »

## Example

Set the background color of all elements in the document with class="example":

var x = document.querySelectorAll(".example");
var i;
for (i = 0; i < x.length; i++) {
x[i].style.backgroundColor = "red";
}
Try it yourself »

## Example

Set the background color of all <p> elements in the document:

var x = document.querySelectorAll("p");
var i;
for (i = 0; i < x.length; i++) {
x[i].style.backgroundColor = "red";
}
Try it yourself »

## Example

Set the border of all <a> elements in the document that have a "target" attribute:

var x = document.querySelectorAll("a[target]");
var i;
for (i = 0; i < x.length; i++) {
x[i].style.border = "10px solid red";
}
Try it yourself »

## Example

Set the background color of every <p> element where the parent is a <div> element:

var x = document.querySelectorAll("div > p");
var i;
for (i = 0; i < x.length; i++) {
x[i].style.backgroundColor = "red";
}
Try it yourself »

## Example

Set the background color of all <h2>, <div> and <span> elements in the document:

var x = document.querySelectorAll("h2, div, span");
var i;
for (i = 0; i < x.length; i++) {
x[i].style.backgroundColor = "red";
}
Try it yourself »

## Related Pages

CSS Tutorial: CSS Selectors

CSS Reference: CSS Selectors Reference

JavaScript Tutorial: JavaScript HTML DOM Node List

HTML DOM Reference: document.querySelector()

HTML DOM Reference: element.querySelectorAll()

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