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Check if an element contains a class in JavaScript?
...List .contains method:
element.classList.contains(class);
This works on all current browsers and there are polyfills to support older browsers too.
Alternatively, if you work with older browsers and don't want to use polyfills to fix them, using indexOf is correct, but you have to tweak it a ...
Is it feasible to compile Python to machine code?
...
There are several options:
Use Psyco, which emits machine code dynamically. You should choose carefully which methods/functions to convert, though.
Use Cython, which is a Python-like language that is compiled into a Python C extension
Use PyPy, which has a translator from RPython (a restricted ...
How to pass optional arguments to a method in C++?
... do_something();
else
do_something_else();
}
you can call myfunc in both ways and both are valid
myfunc(10); // Mode will be set to default 0
myfunc(10, 1); // Mode will be set to 1
share
...
What is the difference between JOIN and UNION?
...ed when columns from one table match columns from another. This match is called the join condition.
This makes joins really great for looking up values and including them in results. This is usually the result of denormalizing (reversing normalization) and involves using the foreign key in one ta...
How to delete multiple files at once in Bash on Linux?
...
Bash supports all sorts of wildcards and expansions.
Your exact case would be handled by brace expansion, like so:
$ rm -rf abc.log.2012-03-{14,27,28}
The above would expand to a single command with all three arguments, and be equivale...
Show a number to two decimal places
...
All the other answers are limited to decimal values with a dot notation. When you need to get 520,00 instead of 520.00, this simply works.
– SPRBRN
May 8 '14 at 15:06
...
npm install private github repositories by dependency in package.json
I'm trying to install github private repository by npm that includes other private github repositories as dependency.
10 An...
How to exclude file only from root folder in Git
...er, and I want to ignore that folder in repo root, its contained files and all descendent subfolders and their files? /folder/?
– CodeManX
Aug 23 '15 at 20:31
12
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Is there a way to make text unselectable on an HTML page? [duplicate]
...e. Likewise, I believe, with the querySelector API which I'm guessing typically hooks into the CSS/xpath selector engines directly. This may change over time as browsers find perf tweaks but I would definitely keep this in mind when supporting IE<=8, maybe <=9.
– Erik Re...
Spring Boot Rest Controller how to return different HTTP status codes?
...s you can use. Quite good way is to use exceptions and class for handling called @ControllerAdvice:
@ControllerAdvice
class GlobalControllerExceptionHandler {
@ResponseStatus(HttpStatus.CONFLICT) // 409
@ExceptionHandler(DataIntegrityViolationException.class)
public void handleConflict...