What is the use of apply and unapply methods in Scala?

What is the use of apply and unapply methods in Scala?

题目类型: 技术面试题

这是一道技术面试题，常见于澳洲IT公司面试中。

难度: easy

标签: interviewbit, scala, topic-specific, jvm

参考答案摘要

In Scala, an extractor defines a method unapply(), as well as an optional method, apply(). For mapping and unmapping data between form and model data, both apply and unapply methods are used. Apply() ...

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