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| From | Thomas 'PointedEars' Lahn <PointedEars@web.de> |
| Newsgroups | comp.lang.javascript |
| Subject | Re: Nested try catch |
| Date | Mon, 21 Jul 2014 03:58:24 +0200 |
| Organization | PointedEars Software (PES) |
| Lines | 50 |
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Andrew Poulos wrote:
> If I have this
>
> try {
> // blah
> } catch(e) {
> try {
> // blah 2
> } catch(e) {}
> }
>
> jslint.com says "'e' is already defined" - fair enough. But if I change
> it to
>
> try {
> // blah
> } catch(e) {
> try {
> // blah 2
> } catch(e2) {}
> }
>
> jslint.com says "Expected 'ignore' and instead saw 'e2'".
>
> Is 'ignore' just a variable name that jslint.com prefers?
Given that jslint.com reports identifiers that are clearly block-scoped per
Specification as global variables, I would not put too much weight on what
jslint.com has to say.
This is just one of jslint.com’s many idiosyncrasies imposing Douglas
Crockford’s defective perception of ECMAScript and its implementations on
developers: If the “catch” block is empty (not considering comments), he/it
expects the identifier for the exception value to be “ignore”, and anything
else is considered an error; otherwise the identifier “ignore” is considered
an error.
ISTM that jslint.com checks grow more rediculous by the year. Perhaps
Douglas Crockford cares to explain what is so bad about block code indented
with two spaces instead of four? I would not mind making additional checks
optional, but to make them the default is highly presumptuous of him.
My advice: Just ignore the new Crockford, his books, and jslint.com.
--
PointedEars
FAQ: <http://PointedEars.de/faq> | SVN: <http://PointedEars.de/wsvn/>
Twitter: @PointedEars2 | ES Matrix: <http://PointedEars.de/es-matrix>
Please do not Cc: me. / Bitte keine Kopien per E-Mail.
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Nested try catch Andrew Poulos <ap_prog@hotmail.com> - 2014-07-21 10:23 +1000 Re: Nested try catch Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2014-07-21 03:58 +0200 Re: Nested try catch Joao Rodrigues <groups_jr-1@yahoo.com> - 2014-07-21 00:19 -0300 Re: Nested try catch Hans-Georg Michna <hans-georgNoEmailPlease@michna.com> - 2014-07-21 08:37 +0200 Re: Nested try catch "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2014-07-21 05:09 -0700
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