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Re: How bad is my hack?

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Stefan Ram wrote:

> event => alert( event.cancelable, event.preventDefault() )
> 
>   Explanation: I want to show the value of »event.cancelable«,
>   and prevent the default handling for the event, but was too
>   lazy to open a block and write
> 
> event => { alert( event.cancelable ); event.preventDefault(); }
> 
>   . Actually, I did not want the line to become too long.
> 
>   How bad is this hack?
> 
>   [ ] Why, we all do it this way!
> 
>   [ ] In the next version of webappapis.html#dom-alert, »alert«
>       will get a second parameter, and your code will break!

<diddle>
>   [x] The maintenance programmer will not understand your
>       intentions.
</diddle>

Also, in some implementations the alert() method *does* have a meaningful 
second argument; IIRC it specified the title of the alert window when there 
still was one (nowadays, popup messages are more common).
 
>   Well, now that I see the block, I observe that it is not
>   that much longer, so I just might change my code to the
>   version with the block.

Please do.  And always write “window.alert(…)” instead of “alert(…)”.

That said, avoid “…alert(…)” for developers in favor of “console.…(…);”.
“…alert(…)” is a nuisance and can easily get a PITA if used wrong because it 
removes the focus from the window.

-- 
PointedEars
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Re: How bad is my hack? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-01-08 23:39 +0100

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