prototype bind support?

Hi, my question kind of relates to my question from: generic pause/wait? I'm trying to wrap my head around how prototypeing works. does the Espruino support bind? For example:

setTimeout(function (e) { this.getSensorReading(); }.bind(this), w); //Attempting to execute getSensorReading()

I receive error:

Uncaught Error: Function "bind" not found!
 at line 8 col 58
...this.getSensorReading(); }.bind(this), w); //Attempting to e...
                               ^
in function "getSensorResult" called from line 1 col 20
ph.getSensorResult();

Hi - I'm afraid it doesn't support it yet... It's on my list though :)

So the issue you have is that 'this' generally gets reset when you call setTimeout - however you can still access any other local variables. The easiest way around it (the one that I tend to use in examples/modules) is:

var sensor = this;
setTimeout(function (e) { sensor.getSensorReading(); }, w);

Works like a charm :)

@d0773d, @Gordon just most recently made .bind() work / implemented... see this conversation. Now you do not need the application defined anonymous function anymore, and the .bind() is more efficient in all ways.

@allObjects thanks for updating my post. I will definitely impliment bind().

As temporary work around on top of your file:

Function.bind||(Function.prototype.bind=­function(c){var f=this,a=[].slice.call(arguments,1);retu­rn function(){a.push.apply(a,arguments);ret­urn f.apply(c,a)}});

In case you don't care about handling extra arguments ...

Function.bind||(Function.prototype.bind=­function(c,f){f=this;return function(){return f.apply(c,arguments)}});

Until it's solved, of course

Function.bind actually exists and works fine now, so hopefully you shouldn't need to do that...

Actually I've just realized Function.bind is there indeed but Function.prototype.bind is not ... but (function(){}).bind is there too ... oh well, good to know (sort of weird)

Yes, that's not right... Something strange is going on there - Thanks for letting me know.

It still works though - I think it's just the way it appears.