Variable declaration in Dart

Question

I'm just beginning to learn Dart and Flutter and I was wondering if there is any difference in the following declarations?

final List<WordPair> _suggestions = <WordPair>[];

and

final _suggestions = <WordPair>[];

They both seem to exhibit the same behaviour but I'm wondering if there is some underlying difference?

I prefer the first declaration as I'm coming from a C/C++ back ground

Rémi Rousselet · Accepted Answer · 2018-10-03 11:59:12Z

3

There's no difference between them at all. The second syntax is here only to avoid pointless repetition.

Usually you should prefer the shorthand in Dart. According to the DO/DON'T of dart, there are some conditions in which you'll want to use the full syntax though.

 final List<Foo> globalVariable = <Foo>[];


 void func() {
   final localVariable = <Foo>[]
 }

answered Oct 3, 2018 at 11:59

Rémi Rousselet

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err Over a year ago

Thank you for the answer and the link :)

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