js add all numbers in an array code example
Example 1: sum of all numbers in an array javascript
const arrSum = arr => arr.reduce((a,b) => a + b, 0)
Example 2: javascript sum array values
function getArraySum(a){
var total=0;
for(var i in a) {
total += a[i];
}
return total;
}
var payChecks = [123,155,134, 205, 105];
var weeklyPay= getArraySum(payChecks);
Example 3: sum of all elements in array javascript
arrSum = function(arr){ return arr.reduce(function(a,b){ return a + b }, 0);}
Example 4: how to add up all numbers in an array
const numbers = [10, 20, 30, 40]
add = (a, b) => a + b
const sum = numbers.reduce(add)