how to convert string to number in dart programming code example

Example 1: string to int in dart

import 'dart:convert';

void main() {
    var a = 10; // An integer
    var b = "20"; // A string
    var c = int.parse(b);
    print(a + c);
}

Example 2: dart string to int

main () {
// String -> int
    var one = int.parse('1');
    print(one == 1); // prints true
    
// String -> double
    var two = double.parse('10');
    print(two); //result is => 10.0
}