Call Javascript function with two different context

Question

Let's say I have a function in a namespace like:

app.MyNamespace = {
    defaults: {
        myOption: 1
    },
    myFunction(param1, param2, options){
         options = $.extend(options, this.defaults);
    }
}

then if I call this in some other context (e.g. window) with

app.MyNamespace.myFunction.call(this);

obviusly the options does not extend with the defaults because it loose the right context.

How can I mantain the defaults in the function, but calling it in another context?

Fiddle

app.MyNamespace.myFunction.call(this); why would you call it like that? — nmoliveira
– nmoliveira, Commented Dec 9, 2014 at 16:08
because it can be used by different classes, it's kinda of en.wikipedia.org/wiki/Delegation_pattern — steo
– steo, Commented Dec 9, 2014 at 16:09
you can use bind In your myFunction you add .bind(this); — nmoliveira
– nmoliveira, Commented Dec 9, 2014 at 16:12
Oh ok.. so you want to change the context. Thought the problem was maintain the context. — nmoliveira
– nmoliveira, Commented Dec 9, 2014 at 16:26

Peter · Accepted Answer · 2014-12-09 16:03:21Z

2

just point it to defaults

app.MyNamespace = {
    defaults: {
        myOption: 1
    },
    myFunction(param1, param2, options){
         options = $.extend(options, app.MyNamespace.defaults);
    }
}

answered Dec 9, 2014 at 16:03

Peter

17k9 gold badges55 silver badges77 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Docsnake · Accepted Answer · 2014-12-09 16:31:37Z

0

if i get what you want, this should do:

app.MyNamespace = {
defaults: {
    myOption: 1
},
myFunction:function(param1, param2, options, scope){
     options = $.extend(options, this.defaults);
 }}; app.MyNamespace.myFunction('param1','param2', {option1:1,option2:2}, this);

answered Dec 9, 2014 at 16:31

Docsnake

111 bronze badge

Collectives™ on Stack Overflow

Call Javascript function with two different context

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related