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Which one will execute faster, if (flag==0) or if (0==flag)?
...e
{
// code never executes
}
if (0 = flag) // typo and syntactic error -> compiler complains
{
// ...
}
While it's true, that e.g. a C-compiler does warn in case of the former (flag = 0), there are no such warnings in PHP, Perl or Javascript or <insert language here>.
...
Closing Hg Branches
... the branch exists, it updates to the given branch or else exists with
an error message.
It closes the branch.
Updates to the default branch.
Stops.
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Which characters are valid in CSS class names/selectors?
...ryl Of course, this is a pretty extreme example, but stuff like class="404-error" can be useful.
– Mathias Bynens
Jul 7 '11 at 15:12
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Uninstalling Android ADT
...Of course, I could just delete the folder of the SDK, but this just throws errors when starting up Eclipse the next time. The reason I'm asking is because my old ADT keeps throwing a wierd error (Failed to fetch URL https://dl-ssl.google.com/android/repository/addons_list.xml , reason: File not fou...
AngularJS: ng-repeat list is not updated when a model element is spliced from the model array
... @PerHornshøj-Schierbeck I agree, otherwise Angular will not be aware of errors if those occur.
– Jim Aho
Apr 15 '15 at 11:22
2
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What algorithms compute directions from point A to point B on a map?
...sman problem to solve routing problems. The trick with ACO is to build an error calculation based upon known facts of the routing so that the graph solving model knows when to quit (when is the error small enough).
You can google ACO or TSP to find more on this technique. I've not used any of the...
Why is super.super.method(); not allowed in Java?
...duce output that the super class cannot produce, this includes throwing an error that the super class does not throw.
– Konstantin Tarashchanskiy
Jan 18 '12 at 19:50
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What is the best way to remove accents (normalize) in a Python unicode string?
...ng.
"""
try:
text = unicode(text, 'utf-8')
except (TypeError, NameError): # unicode is a default on python 3
pass
text = unicodedata.normalize('NFD', text)
text = text.encode('ascii', 'ignore')
text = text.decode("utf-8")
return str(text)
def text_to_id(...
PostgreSQL disable more output
...l.sql >&/dev/null
but I don't recommend that, as it'll throw away error information that might warn you something isn't going right. You're also producing results and throwing them away, which is inefficient; you're better off just not producing them in the first place by adjusting your que...
Get records with max value for each group of grouped SQL results
...a mysql-only solution. All other databases I know will throw an SQL syntax error with the message "non aggregated columns are not listed in the group by clause" or similar. Because this solution uses undocumented behavior, the more cautious may want to include a test to assert that it remains workin...