23-May-2023
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Now, let's see example of How to compare two arrays in JavaScript. We will look at example of Comparison of Two arrays Using JavaScript. I explained simply about How can I find matching values in two arrays. if you have question about JavaScript match values in two arrays then I will give simple example with solution. Here, Creating a basic example of Compare Two Arrays in JavaScript.
There are several ways to compare two arrays for matches in JavaScript. Here are some examples:
Example 1: Using the includes() method
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>How to compare two arrays for Matches in JavaScript? - NiceSnippets.Com</title>
</head>
<body>
</body>
<script type="text/javascript">
const arr1 = [1, 2, 3];
const arr2 = [2, 4, 6];
arr1.forEach(num => {
if (arr2.includes(num)) {
console.log(`${num} is a match!`);
}
});
</script>
</html>
Example 2: Using the filter() method
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>How to compare two arrays for Matches in JavaScript? - NiceSnippets.Com</title>
</head>
<body>
</body>
<script type="text/javascript">
const arr1 = [1, 2, 3];
const arr2 = [2, 4, 6];
const matches = arr1.filter(num => arr2.includes(num));
console.log(matches); // Output: [2]
</script>
</html>
Example 3: Using the reduce() method
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>How to compare two arrays for Matches in JavaScript? - NiceSnippets.Com</title>
</head>
<body>
</body>
<script type="text/javascript">
const arr1 = [1, 2, 3];
const arr2 = [2, 4, 6];
const matches = arr1.reduce((acc, num) => {
if (arr2.includes(num)) {
acc.push(num);
}
return acc;
}, []);
console.log(matches); // Output: [2]
</script>
</html>
#JavaScript
