Bind with coffeescript

Question

How can I call native bind method of function-object with coffeescript ? This is the example of what I am trying to achieve:

window.addEventListener("load",function(e){
    this._filter(true);
    }.bind(this);
 )

mu is too short · Accepted Answer · 2013-06-22 15:12:06Z

up vote 5 down vote accepted

Just add some parentheses around the function so that you can .bind the right thing:

window.addEventListener('load', ((e) ->
    this._filter(true)
).bind(this))

That will use the native bind method instead of the usual var _this = this trickery that CoffeeScript's => uses.

answered Jun 22 '13 at 15:12

mu is too short
236k27406454

thanks, it works great now – carousel Jun 22 '13 at 17:31

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Artur Nowak · Answer 2 · 2013-06-22 14:06:06Z

up vote 7 down vote

I think this is what you're trying to achieve:

window.addEventListener 'load', (e) => @_filter(true)

answered Jun 22 '13 at 14:06

Artur Nowak
2,813819

Looks good, but doesn't work. Converts into:

window.addEventListener('load', (function(_this) {   return function(e) {     return _this._filter(true);   }; })(this));

– Orwellophile Mar 29 at 9:53

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2 Answers 2