Sum all properties in object

Question

I have the following object:

{\"speed\":299,\"equipment\":49,\"teleabb\":49,\"additional\":50,\"optional\":\"299\"}

I want to sum all this

Answer 1

Here's a way of doing it using ES5's Object.keys and reduce:

var obj = {"speed":299,"equipment":49,"teleabb":49,"additional":50,"optional":"299"};
var sum = Object.keys(obj).reduce(function(prev, current, index) {
    return prev + (+obj[current]);
}, 0);
console.log(sum); // 746

jsFiddle