Top "Equality" questions

Custom equality in swift objects preserving compatibility with legacy Objective-C code

In Objective-C you would do something along the lines of - (BOOL)isEqual:(id)other { if (other == self) return YES; …

equality swift

How to check if two Expression<Func<T, bool>> are the same

Is it possible to find out if two expressions are the same? Like given the following four expressions: Expression<…

c# expression equality

Override == operator in Ruby

According to the docs, Array.include? uses the == comparison on objects. I come from Java where such things are (usually) …

ruby overriding equality

how equal operator works with primitive and object type data

I know its a very basic question but I want to be clear about the concept. I want to know …

java equality unboxing

When "" == s is false but "".equals( s ) is true

EDIT Thanks for the prompt responses. Please see what the real question is. I have made it bold this time. …

java comparison equals equality

Why is x == (x = y) not the same as (x = y) == x?

Consider the following example: class Quirky { public static void main(String[] args) { int x = 1; int y = 3; System.out.println(x == (…

java variable-assignment equality operator-precedence jls

Assert that two java beans are equivalent

This question is close, but still not what I want. I'd like to assert in a generic way that two …

java unit-testing assert javabeans equality

Equality with Double.NaN

I have the following code... if (Price_Foreign != Double.NaN) { output.Append(spacer); output.Append(String.Format("{0,-10:C} USD",…

c# equality nan

What's the difference between identical(x, y) and isTRUE(all.equal(x, y))?

Is there any difference between testing isTRUE(all.equal(x, y)) and identical(x, y)? The help page says: Don't …

r comparison equality built-in floating-point-comparison

How do I check if two variables reference the same object in Python?

x and y are two variables. I can check if they're equal using x == y, but how can I check …

python equality