"~/ vs / dart" Code Answer's
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~/ vs / dart
assert(2 + 3 == 5);
assert(2 - 3 == -1);
assert(2 * 3 == 6);
assert(5 / 2 == 2.5); // Result is a double
assert(5 ~/ 2 == 2); // Result is an int
assert(5 % 2 == 1); // Remainder
assert('5/2 = ${5 ~/ 2} r ${5 % 2}' == '5/2 = 2 r 1');
Source: dart.dev
dart ?? operator
int val1;
final int val2 = 20;
console.log(val1 ?? val2); //result => 20 because val1 is null
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final int val1 = 30;
final int val2 = 20;
console.log(val1 ?? val2); //result => 30 because val1 is not null
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