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How to handle many-to-many relationships in a RESTful API?

...who referred them to that team, who their coach is/was while on that team, etc etc. REST depends on caching for efficiency, which requires some consideration for cache atomicity and invalidation. If you POST a new entity to /teams/3/players/ that list will be invalidated, but you don't want the alte...
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Why doesn't GCC optimize a*a*a*a*a*a to (a*a*a)*(a*a*a)?

... of the answer. As a result, most compilers are very conservative about reordering floating point calculations unless they can be sure that the answer will stay the same, or unless you tell them you don't care about numerical accuracy. For example: the -fassociative-math option of gcc which allows...
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Which cryptographic hash function should I choose?

...using keccak (aka SHA3) winner of the SHA3 contest. Original Answer: In order of weakest to strongest I would say: RIPEMD BROKEN, Should never be used as can be seen in this pdf MD-5 BROKEN, Should never be used, can be broken in 2 minutes with a laptop SHA-1 BROKEN, Should never be used, is ...
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Composite Key with EF 4.1 Code First

...uld work - composite key defined with annotations requires explicit column order: public class ActivityType { [Key, Column(Order = 0)] public int ActivityID { get; set; } [Key, Column(Order = 1)] [Required(ErrorMessage = "A ActivityName is required")] [StringLength(50, ErrorMes...
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Any reason to write the “private” keyword in C#?

...e in C# (meaning that if I don't write public , protected , internal , etc. it will be private by default). (Please correct me if I am wrong.) ...
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Object comparison in JavaScript [duplicate]

...d DOM nodes inside: JSON.stringify(obj1) === JSON.stringify(obj2) The ORDER of the properties IS IMPORTANT, so this method will return false for following objects: x = {a: 1, b: 2}; y = {b: 2, a: 1}; 2) Slow and more generic. Compares objects without digging into prototypes, then compar...
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Entity Framework Code First - two Foreign Keys from same table

... public int MatchId { get; set; } [ForeignKey("HomeTeam"), Column(Order = 0)] public int? HomeTeamId { get; set; } [ForeignKey("GuestTeam"), Column(Order = 1)] public int? GuestTeamId { get; set; } public float HomePoints { get; set; } public float GuestPoints { get; se...
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How to sort a dataFrame in python pandas by two or more columns?

... a , b and c , I want to sort the dataframe by column b in ascending order, and by column c in descending order, how do I do this? ...
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Assign output of os.system to a variable and prevent it from being displayed on the screen [duplicat

... asked a long time ago, what you may want to use is popen: os.popen('cat /etc/services').read() From the docs for Python 3.6, This is implemented using subprocess.Popen; see that class’s documentation for more powerful ways to manage and communicate with subprocesses. Here's the co...
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R: += (plus equals) and ++ (plus plus) equivalent from c++/c#/java, etc.?

... x %-=% 3; x y <- c('a', 'b', 'c') y %+=% 'text'; y y %-=% 'text'; y # etc share | improve this answer | follow | ...