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Assigning default values to shell variables with a single command in bash
I have a whole bunch of tests on variables in a bash (3.00) shell script where if the variable is not set, then it assigns a default, e.g.:
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Get Substring between two characters using javascript
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453
You can try this
var mySubString = str.substring(
str.lastIndexOf(":") + 1,
str.lastIn...
Different types of thread-safe Sets in Java
...want to be sure all changes are immediately visible to the other threads.
3) ConcurrentSkipListSet is the concurrent SortedSet implementation, with most basic operations in O(log n). It allows concurrent adding/removing and reading/iteration, where iteration may or may not tell about changes since ...
“Server” vs “Data Source” in connection string
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KyleMit
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answered Feb 22 '13 at 13:48
Damien_The_UnbelieverDamien_The...
How can I check if a key exists in a dictionary? [duplicate]
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3 Answers
3
Active
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Where does Git store the SHA1 of the commit for a submodule?
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Dan MouldingDan Moulding
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Django - Difference between import django.conf.settings and import settings
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135
import settings
Will import settings(.py) module of your Django project (if you are writing t...
Is there a difference between foo(void) and foo() in C++ or C?
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321
In C:
void foo() means "a function foo taking an unspecified number of arguments of unspec...
Difference: std::runtime_error vs std::exception()
... design.
Update: Portability Linux vs Windows
As Loki Astari and unixman83 noted in their answer and comments below, the constructor of the exception class does not take any arguments according to C++ standard. Microsoft C++ has a constructor taking arguments in the exception class, but this is no...
Declaring and initializing variables within Java switches
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Switch statements are odd in terms of scoping, basically. From section 6.3 of the JLS:
The scope of a local variable declaration in a block (§14.4) is the rest of the block in which the declaration appears, starting with its own initializer and including any further declarators to the right i...