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Python function global variables?
I know I should avoid using global variables in the first place due to confusion like this, but if I were to use them, is the following a valid way to go about using them? (I am trying to call the global copy of a variable created in a separate function.)
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How to match all occurrences of a regex
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str.scan(/\d+[m-t]/) # => ["54m", "1t", "3r"] is more idiomatic than str.to_enum(:scan,re).map {$&}
– the Tin Man
Apr 9 at 17:43
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How to set a Timer in Java?
... run the task once you would do:
timer.schedule(new TimerTask() {
@Override
public void run() {
// Your database code here
}
}, 2*60*1000);
// Since Java-8
timer.schedule(() -> /* your database code here */, 2*60*1000);
To have the task repeat after the duration you would do:
timer....
Differences between git remote update and fetch?
...rep --color=always -R -C30 fetch Documentation/RelNotes/* | less
Then I did a less search for --all, and this is what I found under the release notes for Git version 1.6.6:
git fetch learned --all and --multiple options, to run fetch from many repositories, and --prune option to remove remote ...
How do I associate file types with an iPhone application?
... </array>
</dict>
</array>
Two images are provided that will be used as icons for the supported types in Mail and other applications capable of showing documents. The LSItemContentTypes key lets you provide an array of Uniform Type Identifiers (UTIs) that your applicati...
What does “S3 methods” mean in R?
..., and some recommend to use S3 over S4 if possible (See Google's R Style Guide at http://google-styleguide.googlecode.com/svn/trunk/google-r-style.html )*. However, I do not know the exact definition of S3 methods/objects.
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Why doesn't c++ have &&= or ||= for booleans?
... as both operands are of type bool.1
Contrary to what other people have said here, a bool in C++ must never have a different value such as 2. When assigning that value to a bool, it will be converted to true as per the standard.
The only way to get an invalid value into a bool is by using reinterp...
Default value of function parameter
...ied.
For example, you can declare a function with no default arguments
void foo(int a, int b);
In order to call that function after such declaration you'll have to specify both arguments explicitly.
Later (further down) in the same translation unit, you can re-declare it again, but this time w...
Can I have an IF block in DOS batch file?
... operand resolve to IF "value_of_somevar"=="example_string2" to avoid special characters in either string operand causing syntax errors in the IF statement. Values you set should always be done as set "somevar=value_of_somevar" That syntax allows you to escape special characters in ...
What is the default location for MSBuild logs?
... Which is all well and good until you're using diagnostic output and VS decides to throw an 'out of memory' exception when you try to copy to the clipboard. Really is a fundamentally stupid decision not to support sending the build log to a file in the IDE. But hey ho, such is life.
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