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Counter increment in Bash loop not working
...g the counter. Changing COUNTER=$((COUNTER)) into COUNTER=$((COUNTER + 1)) or COUNTER=$[COUNTER + 1] will increase it.
Second, it's trickier to back-propagate subshell variables to the callee as you surmise. Variables in a subshell are not available outside the subshell. These are variables local t...
How to populate/instantiate a C# array with a single value?
... automatically populated with the default value of the type (e.g. false for bool, 0 for int, etc.).
25 Answers
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How to calculate the running time of my program? [duplicate]
...totalTime = (endTime - startTime)/1000; System.out.println(totalTime); if working with segs
– superUser
Jul 10 '15 at 22:22
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How do I use the ternary operator ( ? : ) in PHP as a shorthand for “if / else”?
Based on the examples from this page , I have the working and non-working code samples below.
14 Answers
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How can I strip the whitespace from Pandas DataFrame headers?
... µs per loop
So str.strip is ~2X faster, I expect this to scale better for larger dfs
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for each loop in Objective-C for accessing NSMutable dictionary
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for (NSString* key in xyz) {
id value = xyz[key];
// do stuff
}
This works for every class that conforms to the NSFastEnumeration protocol (available on 10.5+ and iOS), though NSDictionary is one of the few collectio...
Get second child using jQuery
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grab the second child:
$(t).children().eq(1);
or, grab the second child <td>:
$(t).children('td').eq(1);
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Is there any reason for using WebGL instead of 2D Canvas for 2D games/apps?
Is there any reason, except performance, for using WebGL instead of 2D-Canvas for 2D games/apps?
9 Answers
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How do I package a python application to make it pip-installable?
I'm writing a django application in my spare time for a footy-tipping competition we're running at work. I figured I'd use this time wisely, and get up to speed on virtualenv, pip, packaging, django 1.3, and how to write an easily redistributable application. So far, so good.
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How to break out of a loop in Bash?
... value.
There are many ways you could set and test the value of done in order to exit the loop; the one I show above should work in any POSIX-compatible shell.
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