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$ curl repovive.com/roadmaps/javascript/the-dom/selecting-by-class

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$ curl repovive.com/roadmaps/javascript/the-dom/selecting-by-class

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Selecting by Class - The DOM | JavaScript | Repovive

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JavaScript22 sections · 783 units18h total

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Selecting by Class

Find elements with getElementsByClassName

getElementsByClassName() returns all elements with a given class. It returns a live HTMLCollection.

const items = document.getElementsByClassName("item");
console.log(items.length);
console.log(items[0]); // First element

"Live" means the collection updates automatically when the DOM changes.