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Defining a variable with or without export
...$ ALICE="Alice"; export BOB="Bob"; env | grep "ALICE\|BOB"
BOB=Bob
So, now it should be as clear as is the summer's sun! Thanks to Brain Agnew, alexp, and William Prusell.
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Django: Get model from string?
In Django, you can specify relationships like:
10 Answers
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How do I concatenate two strings in C?
...s not the fastest way to do this, but you shouldn't be worrying about that now. Note that the function returns a block of heap allocated memory to the caller and passes on ownership of that memory. It is the responsibility of the caller to free the memory when it is no longer needed.
Call the funct...
Equals(=) vs. LIKE
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Different Operators
LIKE and = are different operators. Most answers here focus on the wildcard support, which is not the only difference between these operators!
= is a comparison operator that operates on numbers and strin...
TypeError: Missing 1 required positional argument: 'self'
...ass. This isn't great practice imo as itsjust creating a useless variable. If the only goal is to run the getPumps function, then it would work just running Pump().getPumps() instead of creating a variable for the function.
– Ashmoreinc
Jun 13 '17 at 18:43
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How do I call setattr() on the current module?
...ted as R/O -- the Python online docs can be a bit confusing about this specific distinction).
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Remove Object from Array using JavaScript
...looping so if you remove an element $.each() will run past the end of the (now shorter) array. (So then someArray[i] will be undefined and undefined.name will crash.)
– nnnnnn
Jul 2 '13 at 11:09
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Please explain the exec() function and its family
...ocess (the parent) as its parent PID (PPID).
Because the two processes are now running exactly the same code, they need to be able to tell which is which - the return code of fork() provides this information - the child gets 0, the parent gets the PID of the child (if the fork() fails, no child is c...
super() fails with error: TypeError “argument 1 must be type, not classobj” when parent does not inh
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If class B is not available for you to edit, then you must edit class A to not try to use super(); class A must be made to work with an "old-style" class, and possibly the best way to do that would be to make class A be itsel...
JSON Stringify changes time of date because of UTC
... currentDate = new Date();
currentDate = JSON.stringify(currentDate);
// Now currentDate is in a different format... oh gosh what do we do...
currentDate = new Date(JSON.parse(currentDate));
// Now currentDate is back to its original form :)
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