map and sum

cara menggunakan map dan sum

by Dedi Wibisono

JavaScript

var arr = [1,2,3,4,5,6,7];

var newarr = arr.map(item => item + 1);

var sum = (a,i)=>{
	console.log('ini a',a, 'ini i',i);
  return  a + i
}

var total = newarr.reduce(sum,0)


/*var total = 0;
for (a=0; a<arr.length; a++) {
  total +=  arr[a] + 1
}*/
console.log(total)