What is the difference between a. This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

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The Equals method is just a virtual one defined in System. Object, and overridden by whichever classes choose to do so. However, most of the value types provided by the framework provide their own overload. The default implementation of Equals for a value type is provided by ValueType, and uses reflection to make the comparison, which makes it significantly slower than a type-specific implementation normally would be.

This implementation also calls Equals on pairs of references within the two values being compared. Here is a great blog post about WHY the implementations are different. Equals is going to be dynamically bound at runtime. At a simple level, the difference is which method is called.

Equals call will do a virtual dispatch on the. As to what the particular methods do, it's all in the code. Ideally this methods should be equivalent sorry for the pun and have the same output but it is not always the case.

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The reason this matters is that you can do this:. Equals is to check value. Equals b are both holding identical values? For string and predefined value types such as intfloat etc.

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One simple way to help remember the difference is that a. One implication is that a.

Equals b will nearly always return some value for a and bregardless of type the normal way to are trading commissions tax deductible is to just return false if b is an unkown type. For strings you want to be careful of culture specific comparisons.

The classic example is the german double S, that looks a bit like a b. For string comparisons that are culture sensitive use: Compare expected, value, StringComparison Equals are equivalent apart from the possibility of calling.

Equals foreign exchange rates russian ruble a null instance which would give you a NullReferenceException. You can, however, override the functionality of either of them independently though I'm not sure that would 777 how to start a binary options company review be a good idea unless you're trying to work around the shortcomings of another systemwhich would mean you 777 how to start a binary options company review MAKE them different.

You'll find people on both sides of the aisle as to the one to use. I prefer the operator rather than the function.

If you're talking about strings, though, it's forex trading chart reading a better idea to use string.

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Log In Sign Up. Join the Stack Overflow Community. Stack Overflow is a community of 7. Join them; it only takes a minute: What is the difference between. This question already has an answer here: CodeMonkey 7, 15 56 Dec 18 '13 at Have a look at stackoverflow. Dirk Vollmar k 37 JaredPar k 91 The reason this matters is that you can do this: Andrew Hare k 43 In the most shorthand answer: Y 3, 1 17 Joel Coehoorn k 92 Equals b ; Here's how you could overload this operator for string types: Equals str2 ; Derived classes can also override and redefine Equals.

As far as "best practices" go, it depends on your intent.

For strings, it does a string comparison, for user types it compares references. Adam Robinson k 22 In it, you'll get: The week's top questions and answers Important community announcements Questions that need answers. Stack Overflow works best with JavaScript enabled.

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