Re: I thought I understood JavaScript till they asked me this on a job interview

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Message-ID	<2254161.6ScPoEuqDY@PointedEars.de> (permalink)
From	Thomas 'PointedEars' Lahn <PointedEars@web.de>
Reply-To	Thomas 'PointedEars' Lahn <cljs@PointedEars.de>
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Subject	Re: I thought I understood JavaScript till they asked me this on a job interview
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Bjoern Hoehrmann wrote:

> So you need to consult documentation for the `setTimeout` function, say
> 
> 
https://developer.mozilla.org/en/docs/Web/API/window.setTimeout#The_.22this.22_problem
> 
> which says
> 
>   Code executed by setTimeout() is run in a separate execution context
>   to the function from which it was called. As a consequence, the this
>   keyword for the called function will be set to the window (or global)
>   object; it will not be the same as the this value for the function
>   that called setTimeout.

You should not blindly believe everything you read.

> So the correct answer is, for the problem case, "same as the value of
> the `x` property on the global object".

No, it is not.  The correct answer is “depends”, as I have explained 
already.

-- 
PointedEars

Twitter: @PointedEars2
Please do not Cc: me. / Bitte keine Kopien per E-Mail.

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Thread

I thought I understood JavaScript till they asked me this on a job interview Alon Melanker <melankeril@gmail.com> - 2014-01-28 05:57 -0800
  Re: I thought I understood JavaScript till they asked me this on a job interview Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2014-01-28 15:58 +0100
    Re: I thought I understood JavaScript till they asked me this on a job interview Hans-Georg Michna <hans-georgNoEmailPlease@michna.com> - 2014-01-28 16:38 +0100
      Re: I thought I understood JavaScript till they asked me this on a job interview "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2014-01-28 17:25 +0100
      Re: I thought I understood JavaScript till they asked me this on a job interview Christoph Michael Becker <cmbecker69@arcor.de> - 2014-01-28 19:00 +0100
        Re: I thought I understood JavaScript till they asked me this on a job interview Hans-Georg Michna <hans-georgNoEmailPlease@michna.com> - 2014-01-29 10:22 +0100
          Re: I thought I understood JavaScript till they asked me this on a job interview Christoph Michael Becker <cmbecker69@arcor.de> - 2014-01-29 17:34 +0100
            Re: I thought I understood JavaScript till they asked me this on a job interview Jim T. <x@y.z> - 2014-01-29 12:45 -0500
            Re: I thought I understood JavaScript till they asked me this on a job interview Hans-Georg Michna <hans-georgNoEmailPlease@michna.com> - 2014-01-30 09:09 +0100
    Re: I thought I understood JavaScript till they asked me this on a job interview Alon Melanker <melankeril@gmail.com> - 2014-01-29 01:52 -0800
      setTimeout() (was: I thought I understood JavaScript till they asked me this on a job interview) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2014-01-29 12:59 +0100
  Re: I thought I understood JavaScript till they asked me this on a job interview Bjoern Hoehrmann <bjoern@hoehrmann.de> - 2014-01-29 14:30 +0100
    Re: I thought I understood JavaScript till they asked me this on a job interview Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2014-01-29 15:39 +0100

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