EN
JavaScript - check if element / node has attribute
0
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In this article, we would like to show you how to check if element / node has the attribute in JavaScript.
Quick solution:
var myElement = document.querySelector('#element-id'); // get element by id
myElement.hasAttribute(attributeName); // check if element has the attribute
Practical example
In this example, we will check if myDiv element has class and onclick attributes using hasAttribute() method.
// ONLINE-RUNNER:browser;
<!DOCTYPE html>
<html>
<head>
<style>
.blue {
background: lightblue;
}
</style>
</head>
<body>
<div id="my-div" class="blue">This is my div.</div>
<script>
var myDiv = document.querySelector('#my-div'); // get element by id
var classCheck = myDiv.hasAttribute('class'); // check if myDiv has class attribute
var onclickCheck = myDiv.hasAttribute('onclick'); // check if myDiv has onclick attribute
console.log(classCheck); // true
console.log(onclickCheck); // false
</script>
</body>
</html>