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Regex to Match Symbols: !$%^&*()_+|~-=`{}[]:";'?,./
...to represent a range of characters. This same character class can be simplified with ranges to this:
/[$-/:-?{-~!"^_`\[\]]/
There are three ranges. '$' to '/', ':' to '?', and '{' to '~'. the last string of characters can't be represented more simply with a range: !"^_`[].
Use an ACSII tabl...
NPM global install “cannot find module”
...hy this has made them incapable of finding installed modules. The fix for now is to point NODE_PATH at the right directory:
export NODE_PATH=/opt/lib/node_modules
My require('promised-io/promise') now succeeds.
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Why does Javascript's regex.exec() not always return the same value? [duplicate]
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A JavaScript RegExp object is stateful.
When the regex is global, if you call a method on the same regex object, it will start from the index past the end of the last match.
When no more matches are found, the index is reset to 0 automatically.
To reset it manually, set the lastIndex pr...
How to use if - else structure in a batch file?
I have a question about if - else structure in a batch file. Each command runs individually, but I couldn't use "if - else" blocks safely so these parts of my programme doesn't work. How can I do make these parts run? Thank you.
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Working Soap client example
...(); headers.addHeader("SOAPAction", "http://ws.cdyne.com/VerifyEmail");. I now think it's strange it worked before without it. :)
– acdcjunior
Apr 11 '13 at 14:01
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Why is it Valid to Concatenate Null Strings but not to Call “null.ToString()”?
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@Svish yes, now I think of it again, it is a null object, so you're right, it won't work. It wouldn't in Java neither: null pointer exception. Never mind. Tnx for your reply! [edit: tested it in Java: NullPointerException. With the diffe...
Where are $_SESSION variables stored?
...x/Unix system. Use the phpinfo() function to view your particular settings if not 100% sure by creating a file with this content in the DocumentRoot of your domain:
<?php
phpinfo();
?>
Here is the link to the PHP documentation on this configuration setting:
http://php.net/manual/en/ses...
Dynamically updating plot in matplotlib
... Since there is no call to show(), the plot never appears on the screen. If I call show(), it blocks and doesn't perform the updates. Am I missing something? gist.github.com/daviddoria/027b5c158b6f200527a4
– David Doria
Sep 18 '15 at 11:14
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Run a Python script from another Python script, passing in arguments [duplicate]
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Try using os.system:
os.system("script2.py 1")
execfile is different because it is designed to run a sequence of Python statements in the current execution context. That's why sys.argv didn't change for you.
s...
Calculate distance between 2 GPS coordinates
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If anyone, specifically those of you who don't look for end of line comments, is staring at this formula and looking for a unit of distance, the unit is km. :)
– Dylan Knowles
Sep 27 '13...