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electerious/closest.js

Last active November 6, 2015 22:14
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Select the closest matching parent of an element
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closest.js
const closest = (elem, className) => {
if (elem==null || elem.classList==null) return null
return (elem.classList.contains(className) ? elem : closest(elem.parentNode, className))
}
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Example:

closest(document.querySelector('.inner'), 'outer')

Alternatives:

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