How to check duplicate in JavaScript top search keyword?

In this example, we first create an array of search keywords that includes a duplicate keyword (JavaScript). We then create a new Set object using the Set constructor and pass in the searchKeywords array as an argument.

Since a Set object can only contain unique values, any duplicates in the original array will be removed automatically. We can then compare the size of the Set object (uniqueKeywords.size) to the length of the original array (searchKeywords.length) to determine if there are any duplicates.

If the size of the Set object is less than the length of the original array, it means there were duplicates in the original array. We can then perform any necessary actions, such as removing the duplicates or displaying an error message.

Duplicate Sentence Checker