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Are Javascript arrays sparse?
...ript arrays are implemented differs from browser to browser, but they generally fall back to a sparse implementation - most likely the same one used for property access of regular objects - if using an actual array would be inefficient.
You'll have to ask someone with more knowledge about specific ...
Hidden features of Scala
... more. Every Regex object in Scala has an extractor (see answer from oxbox_lakes above) that gives you access to the match groups. So you can do something like:
// Regex to split a date in the format Y/M/D.
val regex = "(\\d+)/(\\d+)/(\\d+)".r
val regex(year, month, day) = "2010/1/13"
The secon...
Incrementing in C++ - When to use x++ or ++x?
... i.e., x++ or ++x should only exist on its own line, never as y=x++. Personally, I don't like this, but it's uncommon
– Mikeage
Nov 28 '09 at 16:54
2
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Python SQL query string formatting
...l query string. When I'm debugging
my application I'd like to log to file all the sql query strings, and it is
important that the string is properly formated.
...
Is there a difference between single and double quotes in Java?
...swered Apr 13 '17 at 13:21
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What does a Ajax call response like 'for (;;); { json data }' mean? [duplicate]
I found this kind of syntax being used on Facebook for Ajax calls. I'm confused on the for (;;); part in the beginning of response. What is it used for?
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How to get the build/version number of your Android application?
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@Felix you can't call getPackageManager() outside of context, so getApplicationContext() (or passed context) might be needed.
– Sver
Sep 24 '12 at 7:06
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Officially, what is typename for?
On occasion I've seen some really indecipherable error messages spit out by gcc when using templates... Specifically, I've had problems where seemingly correct declarations were causing very strange compile errors that magically went away by prefixing the typename keyword to the beginning of the...
schema builder laravel migrations unique on two columns
...nique key across multiple columns.
$table->unique(array('mytext', 'user_id'));
or (a little neater)
$table->unique(['mytext', 'user_id']);
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Is PowerShell ready to replace my Cygwin shell on Windows? [closed]
... dose of respect for that community.)
What I found was that this didn't really help much. The reason for that is that AWK/grep/sed don't work against COM, WMI, ADSI, the Registry, the certificate store, etc., etc.
In other words, UNIX is an entire ecosystem self-tuned around text files. As such, t...