Error in using Stdin.readLineSync(); in dart - dart

Question

in vs code, i am getting this error in the basic input taking code from the user
my complete code:
import 'dart:io';
void main(){
stdout.write("Enter your name : ");
var name = stdin.readLineSync();
stdout.write(name);
}
Error in the compiler:
playground.dart:9:23: Error: Method not found: 'Stdin.readLineSync'.
String name = Stdin.readLineSync();
^^^^^^^^^^^^

Answer 1

You must add:
import 'dart:io';
before your main function

Answer 2

To learn dart as console application you should use IntelliJ IDEA IDE.
This is the best IDE for dart.
vscode, dartpad does not support stdin stdout.

Answer 3

if you were getting error like
"Getter not found.'stdin'"
in VSCode check for the extension "dart" is installed on your VSCode then checkitout for run i.e dart run command

Answer 4

stdin.readLineSync()!
use the '!' as I did below:
void main(){
stdout.write("Enter your name : ");
var name = stdin.readLineSync()!;
stdout.write(name);
}

Answer 5

The error you get with stdin.readLineSync() is due to null safety introduced in Dart 2.12. Just add (!)
var name = stdin.readLineSync()!;

Answer 6

you should write it -> stdout.writeln and also import the library for it, I amended the code for you below, and it works fine on VSCode
import 'dart:io';
void main(){
stdout.writeln("Enter your name : ");
var name = stdin.readLineSync();
stdout.write(name);
}