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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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jQuery .hasClass() vs .is()
...s there a preferred method of determining whether an element is assigned a class, from a performance standpoint?
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how to add records to has_many :through association in rails
How do I add to the Agents model for Customer ?
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Conda: Installing / upgrading directly from github
Can I install/upgrade packages from GitHub using conda ?
4 Answers
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How do I show an open file in eclipse Package Explorer?
When a file (.java for example) is open in Eclipse, how do I get the Package Explorer to show the file that I am working on?
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jQuery: keyPress Backspace won't fire?
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Should the .gradle folder be added to version control?
Gradle creates a folder called .gradle . Should I track it with my version control (i.e. git)?
5 Answers
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Providing a default value for an Optional in Swift?
The idiom for dealing with optionals in Swift seems excessively verbose, if all you want to do is provide a default value in the case where it's nil:
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Using CMake with GNU Make: How can I see the exact commands?
I use CMake with GNU Make and would like to see all commands exactly (for example how the compiler is executed, all the flags etc.).
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