Nodes for the term “equal”

How to define an `equals` method in a Scala class (object equality)

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Perl ‘equals’ FAQ: What is true and false in Perl?

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Being lightheaded and passing out because of Stevia Truvia

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A Java “approximately equal” method (function)

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Scala - How to find the unique items in a List, Array, Vector (sequence)

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Java String comparison FAQ: Why doesn't == work when comparing two String objects?

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