Dart Optional Positional Parameters in Functions. Dart Tutorial for Flutter #6.4

[@Quvothe]

Updated version: //Optional Positional Parameters void printCountries(String name1,[String? name2, String? name3]){ print("Name 1 is $name1"); print("Name 2 is $name2"); print("Name 3 is $name3"); }

[@syedakomalshah6516]

short videos full of knowledge, i am just loving it.

[@سيفالشمري-ض1ث6و]

you are THEE BEST teacher in the world! thank you very much

[@karthickrajalearn]

0m 30 sec Thanks for your Slide about Parameters 👍👍👍👍👍 3m 35sec Awesome Optional Parameter 4m 19sec Great Guide Extenslding Optional Parameter

[@brainjoy231]

Really awesome playlist with all the required information of dart language. Loving it

[@sdmagic]

In Dart 3.0, the code in the video doesn't work. Dart 3.0 has null safety rules that won't allow: func([int parameter]). That function won't compile. So for the examples in the video to compile and run, you'll need to write it as: void printCountries(String name1, [String name2 = "Italy", String name3 = "England"]) { ... Note the equals string syntax.

[@imgeekyt]

Thanks man

[@lone.wo1f]

You are awesome bro... Your videos are very detailed and well explained..

[@saisasisai]

Nice 👌 Tutorial series ...!

[@MohamedsamiKhiari]

great tuto

[@rudreshsp3236]

1.does optional parameters should be always be at the end, ?? 2. can we have the only middle parameter as optional..??

[@maniksony]

you didn't mention that optional parameters must be present at last

[@Muhammadafaqakram786]

now optional parameter is different syntax not working that code sir?

[@jriks_]

AWESOME!

[@shaulblack3984]

a. thanks for the great tutorial b. is there any way to turn parameter String name2 into optional without changing the order?

[@chaitanyadeshpande7241]

Same problem happening with me

[@codemolecules4144]

If you use named parameters, the order is irrelevant. With positional parameters, you can make optional only from right to left.

[@nasirmehmood_]

is it valid on return statements ?

[@tanveersyed9999]

awsome

[@manikandand2541]

nice

[@Yuri144Shambles]

does somebody know if i can make like the first parameter opcional and the las one too but keep the second parameter required?

[@absconditus8660]

just reorder the parameters

[@sunnyshingala8791]

void printCountry(String name2, String name3, String name4, [String name1]){

[@MohammedAlmawali]

Guys @Quvothe have resolved the issue, see his comment down below!

[@shivatiwari1127]

👍

[@defensemantra5671]

how to call function through parameter. pls anyboddy help

[@kingkushal8435]

Is it possible ?