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How do I include negative decimal numbers in this regular expression?
...
I don't know why you need that first [0-9].
Try:
^-?\d*(\.\d+)?$
Update
If you want to be sure that you'll have a digit on the ones place, then use
^-?\d+(\.\d+)?$
...
How do I return the response from an asynchronous call?
...ejected.
Important: You can only use await inside an async function. Right now, top-level await isn't yet supported, so you might have to make an async IIFE (Immediately Invoked Function Expression) to start an async context.
You can read more about async and await on MDN.
Here is an example that bu...
What is a Portable Class Library?
... run on a variety of .NET-based platforms without recompilation.
MSDN now has a nice article/documentation on it. You can check it out and see what is supported in Portable Class Library .
The following assemblies are available within a Portable Class Library project:
mscorlib.dl...
How can I get color-int from color resource?
...colors-using-xml-in-android
EDIT(1):
Since getColor(int id) is deprecated now, this must be used :
ContextCompat.getColor(context, R.color.your_color);
(added in support library 23)
EDIT(2):
Below code can be used for both pre and post Marshmallow (API 23)
ResourcesCompat.getColor(getResource...
Git: Correct way to change Active Branch in a bare repository?
...zarre. Just goes to show how hard it is to find something when you don't know exactly what you're looking for.
– kbro
Jul 22 '10 at 8:51
...
Imply bit with constant 1 or 0 in SQL Server
... To make the code more readable we standardised our SQL and now use declared bit variables when we need to express true/false.
– Damien McGivern
Feb 22 '11 at 15:54
...
Jackson and generic type reference
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This is a well-known problem with Java type erasure: T is just a type variable, and you must indicate actual class, usually as Class argument. Without such information, best that can be done is to use bounds; and plain T is roughly same as '...
How do I overload the square-bracket operator in C#?
... +1 for the handy list. FYI the link died. (4 years later, I know)
– Mixxiphoid
Mar 4 '13 at 21:04
I'd li...
How to pass parameters correctly?
...rd>(creditCard) is just a verbose way of saying std::move(creditCard).
Now...
If your types have "cheap" moves, you may want to just make your life easy and take everything by value and "std::move along".
Account(std::string number, float amount, CreditCard creditCard)
: number(std::move(numbe...
Test if characters are in a string
... will be doing a lot of these computations).
– Greg Snow
Apr 12 '12 at 18:10
1
@Josh O'brien, tha...