how to check the length of array code example

Example 1: js length of array

arr = ["a", "b", "c"];
len = arr.length; // 3

Example 2: get length of array

// In Javascript
var x = [1,2,3];
console.log(x.length);

Example 3: length of array in js

var numbers = [1, 2, 3, 4, 5];
var length = numbers.length;
for (var i = 0; i < length; i++) {
  numbers[i] *= 2;
}