27 lines
639 B
Markdown
27 lines
639 B
Markdown
---
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title: elementContains
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tags: browser,intermediate
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firstSeen: 2018-06-19T20:57:58+03:00
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lastUpdated: 2020-11-03T22:11:18+02:00
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---
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Checks if the `parent` element contains the `child` element.
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- Check that `parent` is not the same element as `child`.
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- Use `Node.contains()` to check if the `parent` element contains the `child` element.
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```js
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const elementContains = (parent, child) =>
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parent !== child && parent.contains(child);
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```
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```js
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elementContains(
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document.querySelector('head'),
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document.querySelector('title')
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);
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// true
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elementContains(document.querySelector('body'), document.querySelector('body'));
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// false
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```
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