Given an array of numbers, return the total value of all the numbers.
function addArr(arr){
if(arr.length === 0) return null
let final = 0
arr.forEach(num => {
final += num
})
return final
}const chai = require("chai");
const assert = chai.assert;
describe("Solution", function() {
it("should test for something", function() {
assert.strictEqual(addArr([1, 2, 3, 4, 5]), 15);
assert.strictEqual(addArr([1, 100]), 101)
assert.strictEqual(addArr([]), null)
});
});