Unused - not failing if assigned but not used

[sch...@yahoo.com]

Hi all,

we recently switched our projects JS-Linting from JSLint to JSHint since it had many advantages for us. So far there is just one thing I miss:

function f() {

    var x;

    x = 12;

}

f();

JSLint was warning that x is defined but never used (which might be a bit short at first sight - but the issue (which I would like to get warned about) is that x is defined and assigned a value but that x is never read). JSHint is not warning about that - did I oversee an option for that or would it be possible to add that as option (or to include it into the unused option)?

Thanks a lot!

Cheers,

schibbi

[Peter deHaan]

schibbi,

Check out the `unused` flag, http://jshint.com/docs/options/#unused

-peter

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[Sebastian Schipplick]

hi peter,

 

thanks for your reply - and sorry that I forgot to mention that even with /*jshint unused: strict*/ JSHint will not warn in the case at hand.

 

cheers,

schibbi

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[Anton Kovalyov]

In your example, you define a variable and then use it by assigning a value to it. So technically your variable is being used. That said, we should probably be smarter about that.

Anton

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