I am pretty new to programming in general and am trying to construct a function that will take as input two sets, which can contain other sets (a (b c) d e (f g (h)), 开发者_开发知识库(a b c (d e f))
This question already has answers here: Closed 11 years ago. Possible Duplicate: Does Java guarantee that开发者_运维百科 Object.getClass() == Object.getClass()?
How can I check for null values in JavaScript? I wrote the code below but it didn\'t work. if (pass == null || cpass == null || email == null || cemail == null || user == null) {
Without taking the effort to actually clone JUnit or something, I\'m throwing together a few utility functions to help test some SML code.I do know about QCheck, but it can\'t do this one thing either
Say I have a variable x, and I want to check if it\'s equal toany one of multiple values a, b, c, d, e (I mean the == equality, not identity).
I\'ve looked through Python 2.5 documentation and I couldn\'t find an answer to this: How do I check if an object is the same class 开发者_高级运维as another object?
Is there a reason that std::tr1::unordered_map left out the equality (==) operator, which exists for std::map ?
I have a NSSet containing many thousands of NSValue objects (wrapping CGPoints). I would like to very quickly find if a given CGPoint value exists in the NSSet. It seems to me that the member: method
In .NET System.Object defines a static method bool Equals(object a, object b); That is a useful alternative to a.Equals(b) in cases where a may be null.It also returns true if both a and b are null
I was wondering how you compare two objects for different values. What do i need to research to accomplish this? Is it a comparator and if so could someone point me to a good tutorial?
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