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How to install a specific version of a ruby gem?
Using the command-line gem tool, how can I install a specific version of a gem?
6 Answers
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What does (function($) {})(jQuery); mean?
...Can someone tell me a little more about these? Perhaps an explanation will come in handy someday when writing a framework :)
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Difference between git stash pop and git stash apply
...pop for quite some time. I recently found out about the git stash apply command. When I tried it out, it seemed to work the same as git stash pop .
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HTTPS setup in Amazon EC2
...to open HTTPS port (443). To do that, you go to https://console.aws.amazon.com/ec2/ and click on the Security Groups link on the left, then create a new security group with also HTTPS available.
Then, just update the security group of a running instance or create a new instance using that group.
A...
How do I put a bunch of uncommitted changes aside while working on something else
If I have a bunch of uncommitted changes and want to set it aside while working on something else instead, and then later (f.i. after several days) come back to it and proceed working. What would be the easiest workflow to accomplish this? (So far I have only experience with Mercurial's basic functi...
Why is an int in OCaml only 31 bits?
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This is called a tagged pointer representation, and is a pretty common optimization trick used in many different interpreters, VMs and runtime systems for decades. Pretty much every Lisp implementation uses them, many Smalltalk VMs, many Ruby interpreters, and so on.
Usually, in those la...
No provider for “framework:jasmine”! (Resolving: framework:jasmine)
When I run the command grunt I get the following warning:
6 Answers
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Would it be beneficial to begin using instancetype instead of id?
... 'id', you get essentially no type checking at all. With instancetype, the compiler and IDE know what type of thing is being returned, and can check your code better and autocomplete better.
Only use it where it makes sense of course (i.e. a method that is returning an instance of that class); id i...
Automatically start forever (node) on system restart
...t will ask you which editor you wish to edit with. I like vim, but will recommend nano for ease of use.
Once in the editor add the following line:
@reboot /usr/local/bin/forever start /your/path/to/your/app.js
Save the file. You should get some feedback that the cron has been installed.
For furt...
Can I have multiple background images using CSS?
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For IE8 - IE6, you can use PIE.js. webdesign.tutsplus.com/tutorials/htmlcss-tutorials/…
– Aleš Kotnik
Mar 28 '13 at 13:15
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