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Most efficient way to concatenate strings in JavaScript?
...to it and then do a join. Can anyone explain and give an example of the fastest way to do this?
4 Answers
...
static linking only some libraries
...ly linking in of a specific library. Example:
# echo "int main() {}" > test.cpp
# c++ test.cpp /usr/lib/libX11.a
# ldd a.out
linux-vdso.so.1 => (0x00007fff385cc000)
libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x00007f9a5b233000)
libm.so.6 => /lib/libm.so.6 (0x00007f9a5afb0000)
libgcc_s....
powershell - extract file name and extension
...ension
-------- ---------
StackOverflow.com Test Config .xlsx
If you are given the file name as part of string (say coming from a text file), I would use the GetFileNameWithoutExtension and GetExtension static methods from the System.IO.Path class:
PS C:...
Make Heroku run non-master Git branch
...d on Heroku and it's gotten to the point where I want to make an alternate test server (so I can test Heroku workers without messing up production).
...
How to test valid UUID/GUID?
...9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}$/.test('01234567-9ABC-DEF0-1234-56789ABCDEF0');
or with brackets
/^\{?[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}\}?$/
...
How to create Java gradle project
...
Use mkdir -p src/{main,test}/{java,resources}
– Ortwin Angermeier
Aug 23 '16 at 9:31
1
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What is a good use case for static import of methods?
...sions of JUnit methods like assertEquals and fail were inherited since the test class extended junit.framework.TestCase.
// old way
import junit.framework.TestCase;
public class MyTestClass extends TestCase {
public void myMethodTest() {
assertEquals("foo", "bar");
}
}
In JUnit 4...
How to check if a string is a valid hex color representation?
...
/^#[0-9A-F]{6}$/i.test('#AABBCC')
To elaborate:
^ -> match beginning
# -> a hash
[0-9A-F] -> any integer from 0 to 9 and any letter from A to F
{6} -> the previous group appears exactly 6 times
$ ...
How do I test which class an object is in Objective-C?
How do I test whether an object is an instance of a particular class in Objective-C? Let's say I want to see if object a is an instance of class b, or class c, how do I go about doing it?
...
Copy existing project with a new name in Android Studio
...p on my device. I want to have both apps simultaneously on the device (for testing chrome custom tabs). How can I force Android Studio to have both apps at once on the device?
– Locksleyu
May 1 '18 at 13:55
...