Document: querySelectorAll() method

The Document method querySelectorAll() returns a static (not live) NodeList representing a list of the document's elements that match the specified group of selectors.

Syntax

js

querySelectorAll(selectors)

Parameters

selectors

A string containing one or more selectors to match against. This string must be a valid CSS selector string; if it's not, a SyntaxError exception is thrown. See Locating DOM elements using selectors for more information about using selectors to identify elements. Multiple selectors may be specified by separating them using commas.

Note: Characters which are not part of standard CSS syntax must be escaped using a backslash character. Since JavaScript also uses backslash escaping, special care must be taken when writing string literals using these characters. See Escaping special characters for more information.

Return value

A non-live NodeList containing one Element object for each element that matches at least one of the specified selectors or an empty NodeList in case of no matches.

Note: If the specified selectors include a CSS pseudo-element, the returned list is always empty.

Exceptions

SyntaxError DOMException

Thrown if the syntax of the specified selectors string is not valid.

Examples

Obtaining a list of matches

To obtain a NodeList of all of the <p> elements in the document:

js

const matches = document.querySelectorAll("p");

This example returns a list of all <div> elements within the document with a class of either note or alert:

js

const matches = document.querySelectorAll("div.note, div.alert");

Here, we get a list of <p> elements whose immediate parent element is a <div> with the class highlighted and which are located inside a container whose ID is test.

js

const container = document.querySelector("#test");
const matches = container.querySelectorAll("div.highlighted > p");

This example uses an attribute selector to return a list of the <iframe> elements in the document that contain an attribute named data-src:

js

const matches = document.querySelectorAll("iframe[data-src]");

Here, an attribute selector is used to return a list of the list items contained within a list whose ID is userlist which have a data-active attribute whose value is 1:

js

const container = document.querySelector("#userlist");
const matches = container.querySelectorAll("li[data-active='1']");

Accessing the matches

Once the NodeList of matching elements is returned, you can examine it just like any array. If the array is empty (that is, its length property is 0), then no matches were found.

Otherwise, you can use standard array notation to access the contents of the list. You can use any common looping statement, such as:

js

const highlightedItems = userList.querySelectorAll(".highlighted");

highlightedItems.forEach((userItem) => {
  deleteUser(userItem);
});

Specifications

Specification
DOM Standard
# ref-for-dom-parentnode-queryselectorall①

Browser compatibility

BCD tables only load in the browser

See also