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How to check if a given directory exists in Ruby
...ld use Kernel#test:
test ?d, 'some directory'
it gets it's origins from https://ss64.com/bash/test.html
you will notice bash test has this flag -d to test if a directory exists
-d file True if file is a Directory. [[ -d demofile ]]
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Where are environment variables stored in registry?
...on Manager\Environment"
Get-Item HKCU:\Environment
Powershell/.NET: (see https://msdn.microsoft.com/en-us/library/system.environmentvariabletarget(v=vs.110).aspx)
[System.Environment]::GetEnvironmentVariables([System.EnvironmentVariableTarget]::Machine)
[System.Environment]::GetEnvironmentVariabl...
How can I assign the output of a function to a variable using bash?
...ed often, e.g. functions ending in echo "$returnstring"
This is relevant. https://stackoverflow.com/a/38997681/5556676
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How do I determine which iOS SDK I have?
...ing the xcode-select command above should do the trick for you ;)
Source: https://github.com/fastlane/fastlane/issues/12784
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Twitter Bootstrap Button Text Word Wrap
...p">Lorem ipsum dolor sit amet, consectetur adipiscing elit.</a>
https://getbootstrap.com/docs/4.4/utilities/text/#text-wrapping-and-overflow
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What is the quickest way to HTTP GET in Python?
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It doesn't work with HTTPS-only websites. requests works fine
– OverCoder
Jul 16 '16 at 0:45
6
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How can I get a Bootstrap column to span multiple rows?
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For Bootstrap 3:
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet"/>
<div class="row">
<div class="col-md-4">
<div class="well">1
<br/>
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Resolving javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path
... the expression and I found, this issue occurs when a server changes their HTTPS SSL certificate, and our older version of java doesn’t recognize the root certificate authority (CA).
• If you can access the HTTPS URL in your browser then it is possible to update Java to recognize the root CA.
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How can I use MS Visual Studio for Android Development?
...eeding to install Visual Studio. For more details see
Visuals Studio 2015
https://www.visualstudio.com/en-us/downloads/visual-studio-2015-downloads-vs
Visual Studio Emulator
https://www.visualstudio.com/en-us/features/msft-android-emulator-vs.aspx
Video of features https://channel9.msdn.com/Event...
How do you delete an ActiveRecord object?
...on condition
threshold_age = 20
User.where(age: threshold_age).delete_all
https://www.rubydoc.info/docs/rails/ActiveRecord%2FNullRelation:delete_all
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