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How do I test if a variable is a number in Bash?
I just can't figure out how do I make sure an argument passed to my script is a number or not.
38 Answers
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How to reduce iOS AVPlayer start delay
Note, for the below question: All assets are local on the device -- no network streaming is taking place. The videos contain audio tracks.
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how to listen to N channels? (dynamic select statement)
to start an endless loop of executing two goroutines, I can use the code below:
5 Answers
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form_for with nested resources
I have a two-part question about form_for and nested resources. Let's say I'm writing a blog engine and I want to relate a comment to an article. I've defined a nested resource as follows:
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Make Div overlay ENTIRE page (not just viewport)?
So I have a problem that I think is quite common but I have yet to find a good solution for. I want to make an overlay div cover the ENTIRE page... NOT just the viewport. I don't understand why this is so hard to do... I've tried setting body, html heights to 100% etc but that isn't working. Her...
How do I use format() on a moment.js duration?
Is there any way I can use the moment.js format method on duration objects? I can't find it anywhere in the docs and it doesn't seen to be an attribute on duration objects.
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Can I automatically increment the file build version when using Visual Studio?
I was just wondering how I could automatically increment the build (and version?) of my files using Visual Studio (2005).
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offsetting an html anchor to adjust for fixed header [duplicate]
I am trying to clean up the way my anchors work. I have a header that is fixed to the top of the page, so when you link to an anchor elsewhere in the page, the page jumps so the anchor is at the top of the page, leaving the content behind the fixed header (I hope that makes sense). I need a way to ...
Remove blank attributes from an Object in Javascript
How do I remove all attributes which are undefined or null in a JavaScript object?
37 Answers
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How to use ssh agent forwarding with “vagrant ssh”?
Rather than create a new SSH key pair on a vagrant box, I would like to re-use the key pair I have on my host machine, using agent forwarding . I've tried setting config.ssh.forward_agent to TRUE in the Vagrantfile, then rebooted the VM, and tried using:
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