I have an object called fundsBeingSold. This object contains an Array[] of numbers named sliderValueArr.
If this array has three values..
0: 59
1: 10
2: 12
how do I set a variable to be the sum of these values?
Thanks
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Can you show us what you've tried?devlin carnate– devlin carnate2016-06-30 15:10:21 +00:00Commented Jun 30, 2016 at 15:10
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3Possible duplicate of Sum of values in an array using jQueryHudsonPH– HudsonPH2016-06-30 15:12:51 +00:00Commented Jun 30, 2016 at 15:12
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Possible duplicate of How to find the sum of an array of numbersDavid Gourde– David Gourde2016-06-30 22:07:39 +00:00Commented Jun 30, 2016 at 22:07
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4 Answers
var fundsBeingSold = {
sliderValueArr: [59, 10, 12]
};
var sum = fundsBeingSold.sliderValueArr.reduce(function(a, b) {
return a + b;
});
console.log(sum) // will print the sum 81
Comments
For example:
var total = fundsBeingSold.sliderValueArr.reduce((a, b) => a + b);
Comments
Use reduce:
var sum = fundsBeingSold.sliderValueArr.reduce(function(a,b){return a+b;},0);
You could also use JQuery for that:
$.each(fundsBeingSold.sliderValueArr,function(){sum+=parseFloat(this) || 0;});
If you want, you could also add a prototype to do it faster, like so:
Array.prototype.sum = function() {
return this.reduce(function(a,b){return a+b;});
}
And you would use it like this: var mySum = fundsBeingSold.sliderValueArr.sum();
Comments
you can do :
var fundsBeingSold = {
sliderValueArr: [59, 30, 42]
};
var s = sum();
function sum() {
s = 0;
var i;
for (i = 0; i < fundsBeingSold.sliderValueArr.length ; i++) {
s += fundsBeingSold.sliderValueArr[i];
}
s;
return s;
}
console.log(s);