JavaScript Code

Problem Statement

given an array, write a JavaScript program to filter even numbers in the array

Solution

to filter even numbers in the given array using JavaScript, we can use Array.filter() method. call filter() method on the given array, and pass a function that returns true for even number, or false otherwise. filter() method returns a new array with the even numbers from the contents of original array

Program

1. filter even numbers in the nums array

function isEven(item) {
    if (item % 2 == 0) {
        return true;
    } else {
        return false;
    }
}

nums = [4 , 5, 2, 0, 1, 7, 19, 82];
evenNums = nums.filter(isEven);
console.log(evenNums);