Answers for "js function that multiply an array"

multiply arrays javascript

var sum = 0;
for(var i=0; i< arr1.length; i++) {
    sum += arr1[i]*arr2[i];
}

multiply function javascript

// MULTIPLY FUNCTION
const multiply = (num1, num2) => {
  return num1 * num2;
};
let resulMultiply = multiply(4, 5);
console.log(resulMultiply);
// 20