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How to detect my browser version and operating system using JavaScript?
I have tried using the code below but it only display results in Chrome and Mozilla not working in IE6.
10 Answers
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Ruby arrays: %w vs %W
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Yes. When printing output, Ruby always uses double quotes and escapes characters like #. '#{foo}' and "\#{foo}" give you the same string, which you can verify with '#{foo}' == "\#{foo}" in irb.
– Brian Campbell
Dec 4 '16 at 5:37
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How to keep a Python script output window open?
...a few options:
Run the program from an already-open terminal. Open a command prompt and type:
python myscript.py
For that to work you need the python executable in your path. Just check on how to edit environment variables on Windows, and add C:\PYTHON26 (or whatever directory you installed pyt...
What's a “static method” in C#?
...e class.
A static class is a class which can only contain static members, and therefore cannot be instantiated.
For example:
class SomeClass {
public int InstanceMethod() { return 1; }
public static int StaticMethod() { return 42; }
}
In order to call InstanceMethod, you need an instanc...
How do I copy folder with files to another folder in Unix/Linux? [closed]
...issues to copy a folder with files in that folder into another folder. Command cp -r doesn't copy files in the folder.
3 ...
Should I use alias or alias_method?
...ned in the Module class.)
alias's behavior changes depending on its scope and can be quite unpredictable at times.
Verdict: Use alias_method - it gives you a ton more flexibility.
Usage:
def foo
"foo"
end
alias_method :baz, :foo
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How to solve Operator '!=' cannot be applied to operands of type 'T' and 'T' [duplicate]
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I can't believe my answer survived a year and a half with no one pointing out the huge typo...
– user541686
Oct 21 '13 at 21:11
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Null coalescing in powershell
...wershell 7 introduces native null coalescing, null conditional assignment, and ternary operators in Powershell.
Null Coalescing
$null ?? 100 # Result is 100
"Evaluated" ?? (Expensive-Operation "Not Evaluated") # Right side here is not evaluated
Null Conditional Assignment
$x = $null
$x ?...
How to install the JDK on Ubuntu Linux
...repository:
sudo add-apt-repository ppa:openjdk-r/ppa # only Ubuntu 17.4 and earlier
sudo apt update
Optional: To search available distributions of openjdk, use the following command:
apt search openjdk
Install the appropriate version with the following command:
sudo apt install openjdk-8-jdk
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Update a submodule to the latest commit
I have a project A which is a library and it is used in a project B.
7 Answers
7
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