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const vs final flutter

Viper answered on April 7, 2022 Popularity 10/10 Helpfulness 4/10

answer const vs final flutter

related final vs const dart

const vs final flutter

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final variable can only be set once and it is initialized when accessed.
(for example from code section below if you use the value of 
biggestNumberOndice only then the value will be initialized and 
memory will be assigned).

const is internally final in nature but the main difference is that 
its compile time constant which is initialized during compilation even
if you don't use its value it will get initialized and will take space
in memory.

Variable from classes can be final but not constant and if you want a
constant at class level make it static const.

Popularity 10/10 Helpfulness 4/10 Language dart

Source: Grepper

Tags: dart final flutter

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Contributed on Jun 09 2022

Viper

0 Answers Avg Quality 2/10

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final vs const dart

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Const
Value must be known at compile-time, const int year  = 2022;
Can't be changed after initialized.

Final
Value must be known at run-time, final birthday = getBirthDateFromDB()
Can't be changed after initialized.

Popularity 10/10 Helpfulness 6/10 Language dart

Source: stackoverflow.com

Tags: dart

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Contributed on Apr 07 2022

Hey Argon

0 Answers Avg Quality 2/10

const vs final flutter

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