Check duplicate values in array jquery

1. How to check duplicate values in jQuery array?
2. How do you find duplicate values in an array?
3. How do you check if an array has duplicate values in JS?
4. How to remove duplicate values from array in jQuery?

How to check duplicate values in jQuery array?

You can check if an array has duplicates using $. unique function on jQuery.

How do you find duplicate values in an array?

function checkIfArrayIsUnique(myArray) for (var i = 0; i < myArray. length; i++) for (var j = i+1; j < myArray. length; j++) if (myArray[i] == myArray[j]) return true; // means there are duplicate values return false; // means there are no duplicate values.

How do you check if an array has duplicate values in JS?

Using the indexOf() method

In this method, what we do is that we compare the index of all the items of an array with the index of the first time that number occurs. If they don't match, that implies that the element is a duplicate. All such elements are returned in a separate array using the filter() method.

How to remove duplicate values from array in jQuery?

A very useful jQuery function is the $. unique() that removes all duplicate elements from an array of DOM elements. However this function only works on arrays of DOM elements, not strings or numbers.