querySelector method

Element? querySelector (
  1. String selectors
)

Finds the first descendant element of this document that matches the specified group of selectors.

Unless your webpage contains multiple documents, the top-level querySelector method behaves the same as this method, so you should use it instead to save typing a few characters.

selectors should be a string using CSS selector syntax.

var element1 = document.querySelector('.className');
var element2 = document.querySelector('#id');

For details about CSS selector syntax, see the CSS selector specification.

Implementation

Element? querySelector(String selectors) native;

© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dart.dev/stable/2.13.0/dart-html/Document/querySelector.html