canjs/canjs

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

Frank Lemanschik

@frank-dspeed

and you will have a much better understanding and overview about the options and whats used

https://v3.canjs.com/doc/can-define/map/map.html

if you have any questions that this don't solves plz tell it here so some one can write something about that

Kevin Phillips

@phillipskevin

@roemhildtg can-map-define is the same as what you’re talking about from 2.3

Frank Lemanschik

@frank-dspeed

@phillipskevin but the name changed a bit var DefineMap = require("can-define/map/map");

Kevin Phillips

@phillipskevin

can-map-define is the same

can-define/map/map is a slightly different thing

Frank Lemanschik

@frank-dspeed

ah now we are on the same point :)

Gregg Roemhildt

@roemhildtg

Oh, I see.

Kevin Phillips

@phillipskevin

can-map/can-map-define has attr() and works the same as the Map and define plugin in 2.3

Frank Lemanschik

@frank-dspeed

DifineMap nativ should get depricated or not?

Kevin Phillips

@phillipskevin

DefineMap you don’t need to use attr()

Gregg Roemhildt

@roemhildtg

I like using DefineMap since there's no need for attr

Kevin Phillips

@phillipskevin

DefineMap is the new way

Gregg Roemhildt

@roemhildtg

But can you confirm whether or not the set behavior has changed?

Kevin Phillips

@phillipskevin

set works the same

it’s the value that is not working in your example I think

Frank Lemanschik

@frank-dspeed

the old works but should complain when using attr

Kevin Phillips

@phillipskevin

no can-map-define is a different module

you have to use attr

@roemhildtg

let a = can.DefineMap.extend('a', {
  init(){
    console.log(arguments);
  },
  val: {
    set(val){
      console.log('hey there', val);
      return val;
    }
  }
})
let b = new a();
b.val = 'Hello';
console.log(b.val)

that does what you’re expecting

Frank Lemanschik

@frank-dspeed

ya but you agre with me that we don't use that this way any more as we do var DefineMap = require("can-define/map/map");

Kevin Phillips

@phillipskevin

don’t use what this way?

can-map and can-map-define are legacy modules

for backward compatibility

Frank Lemanschik

@frank-dspeed

we don't use can-map-define in donejs examples

thats what i mean they are still updated but not used any more

Kevin Phillips

@phillipskevin

the donejs examples will be updated to use DefineMap, yeah

Frank Lemanschik

@frank-dspeed

they get replaced by the lazy models

Kevin Phillips

@phillipskevin

and generators, etc

Frank Lemanschik

@frank-dspeed

ya thats what i mean :)

Gregg Roemhildt

@roemhildtg

Okay, but I can provide a default value still, its just this doesn't call the set method anymore?

Frank Lemanschik

@frank-dspeed

i depricated it and throw it out all over

Oh @phillipskevin do you maybe know or tryed it what happens to a 2.3 project when you switch do can3.0

and use the legacy stuff does it work?

Kevin Phillips

@phillipskevin

yes

Frank Lemanschik

@frank-dspeed

so we are compatible wow

Kevin Phillips

@phillipskevin

yeah, we have client projects that are upgrading to 3.0

Frank Lemanschik

@frank-dspeed

don't knowed that fact should consider that in the genrator

ya upgrading means for me also changing the components

i mean it works to only change the requires and imports and they still work nothing left out?

Kevin Phillips

@phillipskevin

no, you do have to make some changes

there’s a migration guide: http://v3.canjs.com/doc/migrate-3.html#Minimalmigrationpath

@roemhildtg to answer your question… I’m not sure

Gregg Roemhildt

@roemhildtg

I've been doing the future proof migration, its not so bad. It cleans up the code a lot removing all of the .attr stuff

Kevin Phillips

@phillipskevin

I don’t think setting a default value on DefineMap like that does what you want

Gregg Roemhildt

@roemhildtg

Okay just thought I'd ask. I do know that in the previous version set would be called when the default value was set. http://jsbin.com/wicuguwisa/edit?html,js,console,output

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