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what is the difference between const and val

abdullah answered on May 15, 2022 Popularity 8/10 Helpfulness 4/10

answer what is the difference between const and val

what is the difference between const and val

Comment

consts are compile time constants. Meaning that their value has to be 
assigned during compile time, unlike vals, where it can be done at runtime.

This means, that consts can never be assigned to a function or any 
class constructor, but only to a String or primitive.

For example:

const val foo = complexFunctionCall()   //Not okay
val fooVal = complexFunctionCall()  //Okay

const val bar = "Hello world"           //Also okay

Popularity 8/10 Helpfulness 4/10 Language kotlin

Source: stackoverflow.com

Tags: between difference kotlin val

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