Use variable on event on datatypes JS

Asked Jul 10 '18 at 11:29

Active Jul 10 '18 at 11:36

Viewed 24 times

I have object as a data:

export const modules = {
    digger: {
        volume: 0,
        maxCapacity: 100,
        onTick: (state) => {
            if (volume < maxCapacity) {
                volume++;
            }
        }
    }, ....
}

How i should use these variables?

edited Jul 10 '18 at 11:36

asked Jul 10 '18 at 11:29

Sergey Tatarinov

1

What do you want to do and what have you tried? – Giannis Mp Jul 10 '18 at 11:30
I tried use `this`, but I have error `Cannot read property 'volume' of undefined `. I want do different operations with these variables on this event – Sergey Tatarinov Jul 10 '18 at 11:31
`this` will not work here, as it refers to the global scope. You can try using a constructor function or class instead. – palaѕн Jul 10 '18 at 11:33
I use these fields in export constant and want to update their values – Sergey Tatarinov Jul 10 '18 at 11:37
Whether `this` works or not depends on how `onTick` is being called. See the duplicate. If that doesn't help, clarify how this is supposed to be used. – deceze Jul 10 '18 at 11:39
@deceze — It's an arrow function, so it doesn't matter how it is called. – Quentin Jul 10 '18 at 11:39
@Quentin Woops, my bad. So the answer would be to make that a `function` first, and *then* it depends… – deceze Jul 10 '18 at 11:40
@deceze , I use `setInterval(tick, 1000)` And I want do some operations by every tick – Sergey Tatarinov Jul 10 '18 at 11:44
`setInterval(digger.onTick, 1000)`? Well then, read the duplicate. Make `onTick` a `function (state) { ... }` and `bind` it. – deceze Jul 10 '18 at 11:50

Use variable on event on datatypes JS

0 Answers0