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Set EditText Digits Programmatically
...
Try this:
<EditText
android:inputType="number"
android:digits="0123456789."
/>
From Code:
weightInput.setKeyListener(DigitsKeyListener.getInstance("0123456789."));
But, it allows the user to include several "."
See JoeyRA's answer for rea...
Legality of COW std::string implementation in C++11
...on taking a reference
to non-const basic_string as an argument.
— Calling non-const
member functions, except operator[], at, front, back, begin, rbegin,
end, and rend.
For a COW string, calling non-const operator[] would require making a copy (and invalidating references), which is di...
Running Bash commands in Python
...h are commonly overlooked.
Prefer subprocess.run() over subprocess.check_call() and friends over subprocess.call() over subprocess.Popen() over os.system() over os.popen()
Understand and probably use text=True, aka universal_newlines=True.
Understand the meaning of shell=True or shell=False and ho...
Character Limit in HTML
...
There are 2 main solutions:
The pure HTML one:
<input type="text" id="Textbox" name="Textbox" maxlength="10" />
The JavaScript one (attach it to a onKey Event):
function limitText(limitField, limitNum) {
if (limitField.value.length > limitNum) {
limitField.value = limit...
What should I do if two libraries provide a function with the same name generating a conflict?
... either of them you can wrap one of them up. That is compile another (statically linked!) library that does nothing except re-export all the symbols of the original except the offending one, which is reached through a wrapper with an alternate name. What a hassle.
Added later: Since qeek says he's t...
How to retrieve a module's path?
... # "print(os.getcwd())" still works fine
Traceback (most recent call last): # but __file__ doesn't exist if bar.py is running as main
File "/path2/bar.py", line 3, in <module>
print(__file__)
NameError: name '__file__' is not defined
Hope this helps. This caveat cost me a ...
Twig: in_array or similar possible within if statement?
...d also the negation is {% if item not in array %} and not {% if not _entry.id in array %}, so it's different from this {% if not var is null %}.
– insertusernamehere
Dec 18 '12 at 11:23
...
Is XSLT worth it? [closed]
...for hints how to implement functions they assumed would just be there and didn't give themselves time to write.
Functional language.
One way to get procedural behaviour, by the way, is to chain multiple transforms together. After each step you have a brand new DOM to work on which reflects the cha...
'this' vs $scope in AngularJS controllers
...ers?"
Short answer:
this
When the controller constructor function is called, this is the controller.
When a function defined on a $scope object is called, this is the "scope in effect when the function was called". This may (or may not!) be the $scope that the function is defined on. So, ins...
TypeError: 'module' object is not callable
...'>
This is what the error message means:
It says module object is not callable, because your code is calling a module object. A module object is the type of thing you get when you import a module. What you were trying to do is to call a class object within the module object that happens to have...