What is Lazy val in Scala

Question

Can anyone explain what Lazy val in Scala with a example?

Answer 1

Hey,

Scala executes a val when we define it, but executes a lazy val only when we access it the first time. We declare it using the keyword lazy:

scala> lazy val x=7

x: Int = <lazy>

scala> lazy val x=2+3

x: Int = <lazy>

Where eager evaluation is at compile-time, lazy evaluation is at run-time.

Hope this helps!

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Thanks!!