Ad

const addArr = (arr) => {
return arr.reduce((acc, now) =>{
acc = acc + now
return acc == 0 ? null : acc
},null)
};

Code
Diff
  • const addArr = (arr) => {
      return arr.reduce((acc, now) =>{
        acc = acc + now
        return acc == 0 ? null : acc 
      },null)
    };
    
    • const addArr = (arr) => {
    • let sum = 0;
    • for (let i = 0; i < arr.length; i++) {
    • sum += arr[i];
    • }
    • return sum || null;
    • return arr.reduce((acc, now) =>{
    • acc = acc + now
    • return acc == 0 ? null : acc
    • },null)
    • };