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How can I determine if a JavaScript variable is defined in a page? [duplicate]
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You can do that with:
if (window.x !== undefined) {
// You code here
}
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Should I use Vagrant or Docker for creating an isolated environment? [closed]
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The only reason you could want to use Vagrant is if you need to do BSD, Windows or other non-Linux development on your Ubuntu box. Otherwise, go for Docker.
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What is the difference between mutex and critical section?
Please explain from Linux, Windows perspectives?
10 Answers
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Is it possible to hide extension resources in the Chrome web inspector network tab?
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An Incognito Window, can be configured to include or exclude extensions from the extensions page of Chrome settings.
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Unable to load config info from /usr/local/ssl/openssl.cnf on Windows
While using OpenSSL on Windows:
14 Answers
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How to solve WAMP and Skype conflict on Windows 7? [closed]
I have Windows 7 (32-bit) installed on laptop.
8 Answers
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Inspect hovered element in Chrome?
...element, your tooltip will appear. Without leaving the element, open a new window (Command-N on Mac, Ctrl-N elsewhere) - Step 3: Drag the new window below the old window, so you can still see the tooltip, then move your cursor into the Element inspector. - Step 4: Scroll to the bottom, where your to...
How to create an infinite loop in Windows batch file?
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Unlimited loop in one-line command for use in cmd windows:
FOR /L %N IN () DO @echo Oops
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Generating a unique machine id
...function that generates an id that is unique for a given machine running a Windows OS.
15 Answers
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How can I update the current line in a C# Windows Console App?
When building a Windows Console App in C#, is it possible to write to the console without having to extend a current line or go to a new line? For example, if I want to show a percentage representing how close a process is to completion, I'd just like to update the value on the same line as the cur...