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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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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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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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Django Rest Framework - Could not resolve URL for hyperlinked relationship using view name “user-det
...n login to view their wine cellar.
My ModelViewSets were working just fine and all of a sudden I get this frustrating error:
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How to create a multi-tenant database with shared table structures?
...quires the use of more
sophisticated design patterns.
As for technical and business considerations, the article makes a brief analysis on where a certain approach might be more appropriate than another:
The number, nature, and needs of the
tenants you expect to serve all affect
your data...
Counting the number of True Booleans in a Python List
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That is not idiomatic and makes "abuse" of the type coercion of bool.
– Jan Segre
Sep 4 '14 at 22:19
26
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Why can't code inside unit tests find bundle resources?
...;
Then your code will search the bundle that your unit test class is in, and everything will be fine.
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How to make an HTML back link?
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And another way:
<a href="javascript:history.back()">Go Back</a>
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