proper way to dynamically assign backbone.js view el
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kikuchiyo
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Published on 2012-06-26T15:12:23Z
Indexed on
2012/06/26
15:15 UTC
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backbone.js
I would like to create two ( or more ) view instances, each with different el attributes, and have events bound to them via backbone.js view's events hash ( not through jQuery ).
Getting events to trigger when all instantiations have the same el
is easy:
someView = Backbone.View.extend({
el: '#someDiv',
events: {
'click': 'someFunction'
},
someFunction: function(){
//Do something here
}
});
So far, if I assign el
in the initialize
function, and set events
normally as follows, events do not trigger:
someView = Backbone.View.extend({
events: {
'click': 'someFunction'
},
initialize: function( options ){
this.el = options.el
},
someFunction: function(){
//Do something here
}
});
My first instinct was to have el
be a function that returns the string representation of the dom element of interest:
someView = Backbone.View.extend({
el: function(){
return '#someDiv-' + this.someNumber
},
events: {
'click': 'someFunction'
},
initialize: function( options ){
this.someNumber = options.someNumber
},
someFunction: function(){
//Do something here
}
});
However, this triggers someFunction
x times if I have x instantiations of someView
.
Next I tried setting both the el
and events
attributes in initialize
:
someView = Backbone.View.extend({
initialize: function( options ){
this.el = options.el
this.events = {
'click': 'someFunction'
}
},
someFunction: function(){
//Do something here
}
});
but this does not trigger events. At this point I'm pretty much fishing.
Does anyone know how instantiate a backbone.js view with an el
specific to that instance that has events that only trigger for that instance, and not other instances of the View
?
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