array sum of two arrays code example

Example 1: sum of two array in javascript

function sumArrays(...arrays) {
  const n = arrays.reduce((max, xs) => Math.max(max, xs.length), 0);
  const result = Array.from({ length: n });
  return result.map((_, i) => arrays.map(xs => xs[i] || 0).reduce((sum, x) => sum + x, 0));
}

console.log(...sumArrays([0, 1, 2], [1, 2, 3, 4], [1, 2])); // 2 5 5 4

Example 2: addition of two arrays

int[] a = {10, 20 30, 40}; int[] b = {25, 50, 75, 100, 125}; int[] sum = new int[b.length];  for (int i = 0; i <= b.length; i++){ 	sum[i] = 0;	 		/*initialize each of the sum values as zeroes, because that's 		what we usually start with*/ 		 	if (i > b.length){  		/*if one array is longer than the other, just add zero the  		remaining elements in the largest array*/ 		sum[i] = b[i] + 0; 	else{ 		sum[i] = a[i] + b[i]; 	} }

Example 3: sum of two array in javascript

function sumArray(a, b) {
      var c = [];
      for (var i = 0; i < Math.max(a.length, b.length); i++) {
        c.push((a[i] || 0) + (b[i] || 0));
      }
      return c;
}