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Groups > comp.lang.javascript > #25852

Re: Use of bind()

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Ben Bacarisse wrote:

> […]  The trouble is that the code simply sets a property called isOn on
> the element clicked, rather than the object called "lightbulb".  The
> result is that it seems to work in this simple case.  If you examine the
> value of lightbulb.isOn you will see that it does not change unless you
> use bind (or something similar, of course) and that the HTML element
> suddenly acquires a new property called isOn.

The HTML element _object_ representing the HTML element need not acquire a 
new property.  It is a host object, and augmenting host objects in order to 
use them as data containers, or using their existing properties in an 
unspecified way, is error-prone; it can fail in several ways.
 
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PointedEars
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Use of bind() enrique.melero@gmail.com - 2014-09-13 15:19 -0700
  Re: Use of bind() Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-09-14 01:01 +0100
    Re: Use of bind() Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2014-09-14 11:48 +0200
  Re: Use of bind() JJ <jj4public@vfemail.net> - 2014-09-14 11:01 +0700
    Re: Use of bind() enrique.melero@gmail.com - 2014-09-14 00:54 -0700

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