17 lines
586 B
Markdown
17 lines
586 B
Markdown
---
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title: elementContains
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tags: browser,intermediate
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---
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Returns `true` if the `parent` element contains the `child` element, `false` otherwise.
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- Check that `parent` is not the same element as `child`, use `parent.contains(child)` to check if the `parent` element contains the `child` element.
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```js
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const elementContains = (parent, child) => parent !== child && parent.contains(child);
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```
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```js
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elementContains(document.querySelector('head'), document.querySelector('title')); // true
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elementContains(document.querySelector('body'), document.querySelector('body')); // false
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``` |