How to declare Variables in Dart
In this article you will learn how to declare variables in Dart Language.
Variable in Dart
A Dart variable referring to memory location used in a computer program or variable are storage location in memory.
Syntax of dart language variable
declared identifier variable name = value; i,e; var name='Dart';
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Example of Dart variable
void main() {
var name='Google Dart !';
print("Hello,${name}!");
}
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Output
If you do not assign any value in dart variable; then it returns null.
Example of default value in dart language
void main() {
var name;
print("Hello ,${name}!");
}
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Output
A final variable can be assigned only once; if you reassigned it, then it gives compile time error.
Example of final variable
void main() {
final name="Google Dart";
name='You are trying to change a final variable'; //Error
print("Hello It is a default value,${name}!");
}
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Output
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