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How to use double or single brackets, parentheses, curly braces
I am confused by the usage of brackets, parentheses, curly braces in Bash, as well as the difference between their double or single forms. Is there a clear explanation?
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numpy: most efficient frequency counts for unique values in an array
In numpy / scipy , is there an efficient way to get frequency counts for unique values in an array?
16 Answers
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Creating functions in a loop
...s late as possible (thus, when called after the end of the loop, i will be set to 2).
Easily fixed by forcing early binding: change def f(): to def f(i=i): like this:
def f(i=i):
return i
Default values (the right-hand i in i=i is a default value for argument name i, which is the left-hand...
What are JavaScript's builtin strings?
this question is difficult to summarize in a question title
7 Answers
7
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Double decimal formatting in Java
I'm having some problems formatting the decimals of a double. If I have a double value, e.g. 4.0, how do I format the decimals so that it's 4.00 instead?
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Is there a way to automate the android sdk installation?
...ort #>: Proxy port to connect to.
* If the env var REPO_OS_OVERRIDE is set to "windows",
"macosx", or "linux", packages will be downloaded for that OS.
so, to update the packages run
$ sdkmanager --update
to accept the licenses
$ yes | sdkmanager --licenses
OLD ANSWER
(Please note: The andr...
What is the best way to dump entire objects to a log in C#?
So for viewing a current object's state at runtime, I really like what the Visual Studio Immediate window gives me. Just doing a simple
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Can a JSON value contain a multiline string
... editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
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When to use f:viewAction / preRenderView versus PostConstruct?
...s particularly useful if you want to perform actions based on model values set by <f:viewParam> during update model values phase. Namely, they are not available at the moment the @PostConstruct runs. In JSF 2.0/2.1, this tag didn't exist and you have to use the preRenderView workaround.
If th...
Search and replace in Vim across all the project files
... of the more powerful full Perl regular expressions rather than the GNU subset.
ack -l 'pattern' | xargs perl -pi -E 's/pattern/replacement/g'
Explanation
ack
ack is an awesome command line tool that is a mix of grep, find, and full Perl regular expressions (not just the GNU subset). Its writt...