CODEWITHSUNDEEP
javascriptarrayssumaddition
John
John

Reputation: 353

Add numerical value of array elements in function

I have successfully tried to create a function where the numerical value of all elements in an array are being added to a total number, but there seems to be a problem when it comes to assigning different variants for array's length and the array itself respectively.

So here's what ostensibly doesn't work for now

var firstValue = 0;
var secondValue = 0;
var firstArray = [8, 5];
var secondArray = [10, 10];

function calculateSum(x,y) {
    for ( var i = 0; i < y.length; i++) {
  x += y[i];
    }
  return x
}

calculateSum(firstValue, firstArray);
console.log(calculateSum);

Upvotes: 1

Views: 220

Answers (3)

webduvet
webduvet

Reputation: 4292

you can use something like this and then add the result to where you need it. In this example you get sum of all values in yourArray and the firstValue. 

var sum = yourArray.reduce(function(pe,ce){
  return pe + ce;
}, firstValue);

link to some docs

Upvotes: 0

user4774017
user4774017

Reputation:

In the last line you have console.log(calculateSum), however this is the function and not the result of the function.

You need to store the result of calculateSum and then log that.

var firstValue = 0;
var secondValue = 0;
var firstArray = [8, 5];
var secondArray = [10, 10];

function calculateSum(x,y) {
    for ( var i = 0; i < y.length; i++) {
  x += y[i];
    }
  return x
}

var result = calculateSum(firstValue, firstArray);
alert(result);

Upvotes: 3

Omar Elawady
Omar Elawady

Reputation: 3350

you are loggin the function itself not the returned value.

var a=calculateSum(firstValue, firstArray);
console.log(a);

it outputs 13;

Upvotes: 4

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