equality - What's the difference between == and .equals in Scala?

Question

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

What is the difference between == and .equals() in Scala, and when to use which?

Is the implementation same as in Java?

EDIT: The related question talks about specific cases of AnyVal. The more general case is Any.

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1 Answer

深蓝 · Answer 1 · 2021-10-17T00:05:48+0000

You normally use ==, it routes to equals, except that it treats nulls properly. Reference equality (rarely used) is eq.