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Return value in a Bash function
...e the output. Global variables are not great because it's just a matter of time before you use the same global var in two places that happen to be nested and data could get lost. There should be separate channels for printing data vs sending data back.
– Oliver
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How do I get the result of a command in a variable in windows?
...is there any practical use for this? Are You kidding? This is used all the time in other shells (all GNU/Linux ones I guess) and it's very useful.
– Piotr Dobrogost
Oct 22 '11 at 18:59
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String slugification in Python
I am in search of the best way to "slugify" string what "slug" is , and my current solution is based on this recipe
10 An...
How do I generate a stream from a string?
I need to write a unit test for a method that takes a stream which comes from a text file. I would like to do do something like this:
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When would anyone use a union? Is it a remnant from the C-only days?
...t really get unions. Every C or C++ text I go through introduces them (sometimes in passing), but they tend to give very few practical examples of why or where to use them. When would unions be useful in a modern (or even legacy) case? My only two guesses would be programming microprocessors when yo...
“Inner exception” (with traceback) in Python?
My background is in C# and I've just recently started programming in Python. When an exception is thrown I typically want to wrap it in another exception that adds more information, while still showing the full stack trace. It's quite easy in C#, but how do I do it in Python?
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how to emulate “insert ignore” and “on duplicate key update” (sql merge) with postgresql?
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Edit: in case you missed warren's answer, PG9.5 now has this natively; time to upgrade!
Building on Bill Karwin's answer, to spell out what a rule based approach would look like (transferring from another schema in the same DB, and with a multi-column primary key):
CREATE RULE "my_table_on_d...
How to check if an element is in an array
...tionary<String, AnyObject>? Trying to achieve that but I get compile-time error.
– ppalancica
Apr 29 '15 at 21:18
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How to remove all click event handlers using jQuery?
...t's again easier to do, because I don't have to write the function a third time.
– Jarrett Meyer
May 6 '09 at 12:53
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Is there a download function in jsFiddle?
...lt to get around that and save the contents of a fiddle anyway.
Since the time the accepted answer was posted, JSFiddle has made some recent UI and backend changes that affect the way a fiddle should be downloaded. Note the updated procedures below.
Simple Commandline Method
This method only d...