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Re: JSlint finds for loops intolerable

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Christoph M. Becker wrote:
> emf wrote:

>> In the current JSLint help webpage (http://jslint.com/help.html) it now
>> says:
>> 
>> "Tolerate for statement:
>> true if the for statement should be allowed It is almost always better
>> to use the array methods instead."

[ ... ] 

>> I do not understand, however, the comment about array methods. I seldom
>> find use for them. Can someone explain what Crawford implies??
> 
> Instead of looping with `for` or `while` over all elements of an array,
> you can instead do:
> 
>   myArray.forEach(function(el) {
>       ...
>   });
> 
> Once you get the hang of using Array.prototype.forEach(), you'll
> probably find many places where a more specific array method is more
> appropriate (for instance, .filter() and map()), and these can simplify
> the code (even more).

Indeed.  This is the first thing I teach JS developers trying to move 
beyond a junior level.  I emphasize pure, side-effect free functions, and 
once they're doing this, I point out that every `for-` and `forEach-` 
loop remaining is better expressed with one of the standard functions.

 
> Note that this programming style is often referred to as applicative or
> functional programming.  You may consider to learn about it (I can
> recommend
> <https://drboolean.gitbooks.io/mostly-adequate-guide/content/>).

I heartily concur.  That's an excellent book.  I'd also add Reginald 
Braithwaite's _JavaScript Allongé_, either the first edition [1] or the 
second, ES6/ES2015, focused one [2].

  [1]: https://leanpub.com/javascript-allonge
  [2]: https://leanpub.com/javascriptallongesix

  -- Scott

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JSlint finds for loops intolerable emf <emfril@gmail.com> - 2016-08-28 06:56 -0400
  Re: JSlint finds for loops intolerable "Christoph M. Becker" <cmbecker69@arcor.de> - 2016-08-28 14:28 +0200
    Re: JSlint finds for loops intolerable emf <emfril@gmail.com> - 2016-08-29 22:35 -0400
    Re: JSlint finds for loops intolerable Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-08-30 12:11 +0200
      Re: JSlint finds for loops intolerable "Christoph M. Becker" <cmbecker69@arcor.de> - 2016-09-03 20:54 +0200
      Re: JSlint finds for loops intolerable Scott Sauyet <scott@sauyet.com> - 2016-09-03 23:03 +0000
    Re: JSlint finds for loops intolerable Scott Sauyet <scott@sauyet.com> - 2016-09-03 22:47 +0000
  Re: JSlint finds for loops intolerable Lewis Perin <perin@panix.com> - 2016-08-28 16:50 -0400
    Re: JSlint finds for loops intolerable Lewis Perin <perin@panix.com> - 2016-08-28 18:49 -0400
      Re: JSlint finds for loops intolerable Lewis Perin <perin@panix.com> - 2016-08-28 19:13 -0400
  Re: JSlint finds for loops intolerable $Bill <news@todbe.com> - 2016-08-28 14:59 -0700

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