javascript get list length code example

Example 1: array length javascript

var arr = [10,20,30,40,50]; //An Array is defined with 5 instances

var len= arr.length;  //Now arr.length returns 5.Basically, len=5.
console.log(len); //gives 5
console.log(arr.length); //also gives 5

Example 2: length of list in javascript

var nums = new Array();
nums[0] = 1; 
nums[1] = 2;
print(nums.length); // displays 2