equality

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Reqular expression to separate equalities

Does anyone have some good resources on learning more advanced regular expressions I keep having problems where I want开发者_开发问答 to make sure something is not enclosed in quotation marks[详细]

2023-02-03 14:42 分类：问答
Determining Date Equality in Javascript

I need to find out if two dates the user selects are the same in Javascript. The dates are passed to this function in a String (\"xx/xx/xxxx\").That is all the granularity I need.[详细]

2023-02-02 00:36 分类：问答
What does "<=>" in MySQL mean?

What does <=&开发者_JS百科gt; in MySQL mean and do?The manual says it all: NULL-safe equal. This operator[详细]

2023-02-01 08:54 分类：问答
3 Equals or Case Equality operator

In Ruby Integer === 5 returns true. Similarly String === \"karthik\" ret开发者_Python百科urns true.[详细]

2023-02-01 06:22 分类：问答
Why the compiler emits box instructions to compare instances of a reference type?

Here is a simple generic type with a unique generic parameter constrained to reference types: class A<T> where T : class[详细]

2023-01-31 08:45 分类：问答
C# equality checking

What\'s your approach on writing equality checks for the structs and classes you create? 1) Does the \"full\" equality checking require that much of boilerplate code (like override Equals, override G[详细]

2023-01-29 22:47 分类：问答
Function to check equality between trees

How can I implement an equality function in Scheme that takes 2 trees a开发者_如何学JAVAnd checks if they have both the same elements and structure?recursion from the root each of the trees[详细]

2023-01-29 04:15 分类：问答
Javascript Comparision expression

I am confused about javascript comparison. let\'s say : var array1 = [1,2,3]; var array2 = [1,2,3]; array1 == array2 ;[详细]

2023-01-25 09:57 分类：问答
How to compare two boxed numbers for equality in .NET?

Suppose I have the following, completely pointless code: object val1 = 1;开发者_StackOverflow object val2 = 1l;[详细]

2023-01-25 08:20 分类：问答
Cast to object before null check in overriding Equals [duplicate]

This question already has answers here: In the msdn guidance on Equals override, why the cast to object in the null check?[详细]

2023-01-23 21:17 分类：问答