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An “and” operator for an “if” statement in Bash
I'm trying to create a simple Bash script to check if the website is down and for some reason the "and" operator doesn't work:
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Understanding the ngRepeat 'track by' expression
I'm having difficulties understanding how the track by expression of ng-repeat in angularjs works. The documentation is very scarce: http://docs.angularjs.org/api/ng/directive/ngRepeat
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List vs Set vs Bag in NHibernate
What's the difference between a list, set and bag in the NHibernate mapping file? How does each relate to .NET collections?
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Why is it OK to return a 'vector' from a function?
...a copy of the return value actually (available at least with the current standard).
– πάντα ῥεῖ
Feb 9 '15 at 20:46
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How do I enable EF migrations for multiple contexts to separate databases?
...ecause the Configuration.cs file already exists. If you rename that class and file, you should be able to run that 2nd Enable-Migrations, which will create another Configuration.cs.
You will then need to specify which configuration you want to use when updating the databases.
Update-Database -Con...
How does the String class override the + operator?
...x = "+x;
The compiler converts "x = "+x; into a StringBuilder internally and uses .append(int) to "add" the integer to the string.
5.1.11. String Conversion
Any type may be converted to type String by string conversion.
A value x of primitive type T is first converted to a reference val...
git: How to diff changed files versus previous versions after a pull?
...pull" I often want to know what changed between the last version of a file and the new one. Say I want to know what someone else committed to a particular file.
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What is the difference between an annotated and unannotated tag?
If I want to tag the current commit. I know both of the following command lines work:
3 Answers
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AngularJS : When to use service instead of factory
...ng objects into AngularJS dependency injection system. It is very flexible and can contain sophisticated creation logic. Since factories are regular functions, we can also take advantage of a new lexical scope to simulate "private" variables. This is very useful as we can hide implementation details...
Using :before CSS pseudo element to add image to modal
...class Modal which is absolutely positioned, z-indexed above it's parent, and nicely positioned with JQuery. I want to add a caret image (^) to the top of the modal box and was looking at using the :before CSS pseudo selector to do this cleanly.
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