sum array items javascript code example
Example 1: javascript sum of array
const sum = arr => arr.reduce((a, b) => a + b, 0);
Example 2: javascript reduce sum
arrSum = function(arr){ return arr.reduce(function(a,b){ return a + b }, 0);}
const sum = arr => arr.reduce((a, b) => a + b, 0);
arrSum = function(arr){ return arr.reduce(function(a,b){ return a + b }, 0);}