25-Apr-2023
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This tutorial will provide example of how to find first occurrence of array in javascript. I would like to share with you javascript array find | find first occurrence of array. I would like to share with you find the first occurrence in an array list in javascript. In this article, we will implement a how to find the first occurrence of an array in javascript . Follow bellow tutorial step of javascript find first occurrence in array.
To find the first occurrence of an array in JavaScript, you can use the `indexOf()` method.
Example 1:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>How to Find First Occurrence of Array in Javascript? - NiceSnippets.Com</title>
</head>
<body>
</body>
<script type="text/javascript">
const arr1 = [1, 2, 3];
const arr2 = [4, 5, 6];
const arr3 = [1, 2, 3];
console.log(arr1.indexOf(arr2)); // -1 (not found)
console.log(arr1.indexOf(arr3)); // 0 (found at index 0)
</script>
</html>
In this example, we have three arrays: `arr1`, `arr2`, and `arr3`. We use the `indexOf()` method to search for `arr2` in `arr1`, which returns `-1` because it is not found. We then search for `arr3` in `arr1`, which returns `0` because it is found at the beginning of the array.
#JavaScript
