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When should you use a class vs a struct in C++?
...e default private members and bases. Both classes and structs can have a mixture of public, protected and private members, can use inheritance and can have member functions.
I would recommend using structs as plain-old-data structures without any class-like features, and using classes as aggregate ...
Why does 2 mod 4 = 2?
...ign % is often used for the modulo operator, in lieu of the word mod.
For x % 4, you get the following table (for 1-10)
x x%4
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1 1
2 2
3 3
4 0
5 1
6 2
7 3
8 0
9 1
10 2
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How to get a random value from dictionary in python
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That will work in Python 2.x where d.keys() is a list, but it won't work in Python 3.x where d.keys() is an iterator. You should do random.choice(list(d.keys())) instead.
– Duncan
Feb 1 '11 at 9:42
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Type definition in object literal in TypeScript
In TypeScript classes it's possible to declare types for properties, for example:
9 Answers
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Resolve conflicts using remote changes when pulling from Git remote
... to me and git ;-). Seriously though, thanks a million. Your answer's are exactly what I was looking for.
– David Tuite
Jan 27 '11 at 15:23
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How do I determine which iOS SDK I have?
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If you type this:
$> xcodebuild -showsdks
it gives something like this:
$> OS X SDKs:
OS X 10.8 -sdk macosx10.8
OS X 10.9 -sdk macosx10.9
iOS SDKs:
iOS 6.1 -sd...
PHP: How to send HTTP response code?
...ponses with HTTP response codes (status-codes), like HTTP 200 OK, or some 4XX or 5XX code.
9 Answers
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How to tell bash that the line continues on the next line
In a bash script I got from another programmer, some lines exceeded 80 columns in length. What is the character or thing to be added to the line in order to indicate that the line continues on the next line?
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How to add custom validation to an AngularJS form?
...the required attributes and such. But for some fields I need to do some extra validation. How would I "tap in" to the validation that FormController controls?
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Why would a JavaScript variable start with a dollar sign? [duplicate]
...variables that start with a dollar sign. When/why would you choose to prefix a variable in this way?
16 Answers
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