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Kotlin

Delegation Using Lazy Functions

 

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Delegation allows deferring the initialization of a variable at a later stage instead of initializing the variable as null. It helps to initialize the variable only once.

Fortunately, Kotlin comes with native support for Delegation with 2 standard delegates (part of the Kotlin standard library) via lazy and lateinit. This is extremely handy and useful feature, as we don’t need to initialize something until it is required; or just because we can’t initialize something until we have all we need.

In this lesson you will learn:
- How the lazy function work
- How values are only computed once
- About the various LazyThreadSafetyMode's that lazy supports.

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