Undefined when i am returning an Object in Javascript

I’m doing a getter in VueX, and when i’m returning an object for another function, i have “undefined”. getId: (state) => (LotofID, id) => { LotofID.points.map(obj => { …

How to return object from MongoDb database in findOne method

sorry if it’s easy mistake, I’ve not so much experience in JS, I’ve tried a lot of ways and I can’t resolve this problem. I can find and print my object from database, but I can’t return it to my main …

Memory reference issue for function return (React Javascript)

So I am working in React.js. I need to generate three versions of the same list, but with a different set of markets contained inside of each of the three events. I expect the events to be the same. …

What’s the performance difference between “skip if condition” and “directly return”?

Is there any performance difference between the following 2 functions: function a() { var a = false; if(a == true) { … Many lines, e.g. 1 million lines … } } function b() { …