canjs/canjs

We CAN build the impossible! https://codepen.io/justinbmeyer/pen/yEGGoK

Kevin Phillips

@phillipskevin

see if it is the same thing you are doing @AntonProkofyev

Frank Lemanschik

@frank-dspeed

@phillipskevin couldn't he directly return the promis and don't use resolve?

i think he could simply return userConnection.get() ?

Kevin Phillips

@phillipskevin

he could, but it would make the template more complicated

and not fix this problem

Frank Lemanschik

@frank-dspeed

why would that affect the template

i always return pormis

and get directly the value

Kevin Phillips

@phillipskevin

you have to do user.value.name in the template

AntonProkofyev

@AntonProkofyev

mmm let me check

Frank Lemanschik

@frank-dspeed

hmmm i always do this each stuff for user.value

Kevin Phillips

@phillipskevin

@AntonProkofyev the way your code is, user.name is fine

Frank Lemanschik

@frank-dspeed

and that works great

Kevin Phillips

@phillipskevin

you can do it that way, @frank-dspeed

Frank Lemanschik

@frank-dspeed

then i have no value when i use his code style

interristing

Kevin Phillips

@phillipskevin

using the async getter with resolve, you don't have to do it that way

user is the value if you use resolve

Frank Lemanschik

@frank-dspeed

but then i can also do no waiting like if isResolved right?

because i only get the value

i understand the diffrence is getting a promis or a value i understand

Kevin Phillips

@phillipskevin

right

Frank Lemanschik

@frank-dspeed

do you know a code that would allow me to change the value every x secunds?

Kevin Phillips

@phillipskevin

I usually do promises like this:

    userPromise: {
        get: function () {
            return userConnection.get();
        }
    },
    user: {
        get: function(last, resolve) {
            this.userPromise.then(resolve);
        }
    }

so you can do userPromise.isResolved and also user.name

in the template

Frank Lemanschik

@frank-dspeed

ah nice now i understand

why this is in some examples

i saw that :)

AntonProkofyev

@AntonProkofyev

yep that's what i saw in docs and i can see name when it's resolved...
i've add breakpoint but it gives nothing. just see that Object.defineProperty(map, "_instanceDefinitions", { make an error
and that map constructor is DefineMap

Frank Lemanschik

@frank-dspeed

but do you know a way to reset a value with a interval?

Kevin Phillips

@phillipskevin

@frank-dspeed use a setter

Frank Lemanschik

@frank-dspeed

how you mean that?

i have really no idea about that because for me a setter gets only called on set

and then you mean i can do var x = interval() in the setter

Kevin Phillips

@phillipskevin

foo: {
  value: 1,
  set(val) {
    setTimeout(() => { this.foo+=1 }, 1000);
    return val;
  }
}

Frank Lemanschik

@frank-dspeed

and it gets executed?

and that gets automatic executed?

does the setter get executed with value ?

Kevin Phillips

@phillipskevin

yeah

Frank Lemanschik

@frank-dspeed

ok ok

looks pritty cool

Kevin Phillips

@phillipskevin

@AntonProkofyev can you check what is propand value ?

and walk up the stack to the first place that is in your code

to see what is being called

AntonProkofyev

@AntonProkofyev

can you сlarify plz what you mean by checking what is prop and value
i can see that this defineMap appears somwhere near reflection/get-set
setKeyValue

Kevin Phillips

@phillipskevin

the parameters that function is being called with

https://github.com/canjs/can-define/blob/master/define-helpers/define-helpers.js#L8

AntonProkofyev

@AntonProkofyev

i can see that this defineMap is definening in can-stache-bindings.js in

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