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LINQ with groupby and count
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After calling GroupBy, you get a series of groups IEnumerable<Grouping>, where each Grouping itself exposes the Key used to create the group and also is an IEnumerable<T> of whatever items are in your original data set. ...
Why array implements IList?
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Because an array allows fast access by index, and IList/IList<T> is are the only collection interfaces that support this. So perhaps your real question is "Why is there no interface for constant collections with indexers?" And to that I...
When should I use RequestFactory vs GWT-RPC?
I am trying to figure out if I should migrate my gwt-rpc calls to the new GWT2.1 RequestFactory cals.
8 Answers
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Make .gitignore ignore everything except a few files
...han the root dir won't be found anyway. I'm using this now (with *.pl) and all *.pl files are being ignored even though there are many in the subdirectories below the .gitignore file
– PandaWood
Nov 6 '11 at 1:44
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Git merge two local branches
...ed to merge branchA with branchB and proceed my work in the branchA . All files are comitted in the branchA and branchB .
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What is the difference between JOIN and UNION?
...ed when columns from one table match columns from another. This match is called the join condition.
This makes joins really great for looking up values and including them in results. This is usually the result of denormalizing (reversing normalization) and involves using the foreign key in one ta...
How to check if an int is a null
I have an object called Person .
8 Answers
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get NSDate today, yesterday, this Week, last Week, this Month, last Month… variables
...ve the seconds into the day if you want
NSDate *today = [NSDate date];
// All intervals taken from Google
NSDate *yesterday = [today dateByAddingTimeInterval: -86400.0];
NSDate *thisWeek = [today dateByAddingTimeInterval: -604800.0];
NSDate *lastWeek = [today dateByAddingTimeInterval: -1209600.0]...
Best practices around generating OAuth tokens?
...ere are any best practices for creating significantly secure tokens (especially Token/Secret combinations).
1 Answer
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Using a bitmask in C#
... flags = (T)(object)(flagsValue & (~flagValue));
}
}
This would allow me to rewrite the above code as:
Names names = Names.Susan | Names.Bob;
bool susanIsIncluded = FlagsHelper.IsSet(names, Names.Susan);
bool karenIsIncluded = FlagsHelper.IsSet(names, Names.Karen);
Note I could also ...