Html DOM: Difference between revisions

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<syntaxhighlight lang="javascript">
<syntaxhighlight lang="javascript">
document.querySelector('div.foo-class');      // find items by CSS-selector
document.querySelector('div.foo-class');      // find first matching item by CSS-selector
document.querySelectorAll('div.foo-class');  // find all matching items by CSS-selector
document.getElementById('foo-id');            // find element with ID
document.getElementById('foo-id');            // find element with ID
document.getElementsByClassName('foo-class'); // find elements with class
document.getElementsByClassName('foo-class'); // find elements with class
</syntaxhighlight>
</syntaxhighlight>
</blockquote><!-- Examples -->
</blockquote><!-- Examples -->

Revision as of 16:38, 1 September 2021

Query/Manipulate an HTML page from javascript using it's DOM (domain-object-model).

Documentation

DOM docs https://developer.mozilla.org/en-US/docs/Web/API/Document_Object_Model

Examples

You can select items from javascript using css selectors.

document.querySelector('div.foo-class');      // find first matching item by CSS-selector
document.querySelectorAll('div.foo-class');   // find all matching items by CSS-selector
document.getElementById('foo-id');            // find element with ID
document.getElementsByClassName('foo-class'); // find elements with class