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Make $JAVA_HOME easily changable in Ubuntu [closed]
In Ubuntu, I'd like to switch my JAVA_HOME environment variable back and forth between Java 5 and 6.
8 Answers
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CSS: Change image src on img:hover
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With only html and css, its not posible to change the src of image. If you do replace the img tag with div tag, then you might be able to change the image that is set as the background as like
div {
background: url('http...
What is the difference between call and apply?
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The difference is that apply lets you invoke the function with arguments as an array; call requires the parameters be listed explicitly. A useful mnemonic is "A for array and C for comma."
See MDN's documentation on apply and call.
Pseudo syntax:
theFunction.apply(valueForThis, ar...
Adding iOS UITableView HeaderView (not section header)
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UITableView has a tableHeaderView property. Set that to whatever view you want up there.
Use a new UIView as a container, add a text label and an image view to that new UIView, then set tableHeaderView to the new view.
For ...
Ruby off the rails
Sometimes it feels that my company is the only company in the world using Ruby but not Ruby on Rails, to the point that Rails has almost become synonymous with Ruby.
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Rubymine: How to make Git ignore .idea files created by Rubymine
...en, Rubymine makes changes in .idea/* files that I don't care about. But it keeps preventing me from checking out new branches, and makes my version of .idea/ different from my coworkers.
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How does the Meteor JavaScript framework work? [closed]
I came across Meteor and while it seems exciting, I want to know how it works. I mean conventional web applications work like this:
You have scripts on server which take data from database and add that dynamically to web-pages and the user-submitted data gets added to databases through some other ...
Git stash: “Cannot apply to a dirty working tree, please stage your changes”
I am trying to apply changes I stashed earlier with git stash pop and get the message:
11 Answers
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Maven project version inheritance - do I have to specify the parent version?
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EDIT: Since Maven 3.5.0 there is a nice solution for this using ${revision} placeholder. See FrVaBe's answer for details. For previous Maven versions see my original answer below.
No, there isn't. You always have to specify ...
How do I run all Python unit tests in a directory?
I have a directory that contains my Python unit tests. Each unit test module is of the form test_*.py . I am attempting to make a file called all_test.py that will, you guessed it, run all files in the aforementioned test form and return the result. I have tried two methods so far; both have fail...