Total Length of Nested SubArray

lenght-of-nested-subarray.md

Given a nested array write a function that returns the total length of the nested subarrays.

CODE TEMPLATE

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function totalLength(arr){
// write your code here
}

let myArray = [[1,2,3],[],[false,'vivek'],[]];
totalLength(myArray);//5
myArray = [[1],[],[false,'vivek'],[5,6,7,8,9]];
totalLength(myArray);//8
myArray = [];
totalLength(myArray);//0

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