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Rooted by: Add numbers of an array
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  • Code 
    (ns arr-sum)
(def arr-add #(reduce + %))
     Test Cases 
    (ns arr-sum-test
  (:require [clojure.test :refer :all]
            [arr-sum :refer [arr-add]]))
            
(deftest arr-add-test
  (is
    (arr-add (list 1 2 3 4 5 6 7 8 9))
    (+ 1 2 3 4 5 6 7 8 9))
  (is
    (arr-add (list 1 2 3 -4 5 6 7 8 9))
    (+ 1 2 3 -4 5 6 7 8 9)))
    View Run Output
  • Code
    • function addArr(arr){
    • if(arr.length === 0) return null
    • let final = 0
    • arr.forEach(num => {
    • final += num
    • })
    • return final
    • }
    • (ns arr-sum)
    • (def arr-add #(reduce + %))
     Test Cases
    • 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)
    • });
    • });
    • (ns arr-sum-test
    • (:require [clojure.test :refer :all]
    • [arr-sum :refer [arr-add]]))
    • (deftest arr-add-test
    • (is
    • (arr-add (list 1 2 3 4 5 6 7 8 9))
    • (+ 1 2 3 4 5 6 7 8 9))
    • (is
    • (arr-add (list 1 2 3 -4 5 6 7 8 9))
    • (+ 1 2 3 -4 5 6 7 8 9)))