add values of an array javascript 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: how to append object in array javascript
var select =[2,5,8];
var filerdata=[];
for (var i = 0; i < select.length; i++) {
filerdata.push(this.state.data.find((record) => record.id == select[i]));
}