Flutter_Q4

var stud={"ID":1521};

print(user.contiansKey("id"));

what is the output of this code?

• True

• False

• 1521

• Error

var employee={"Name":"Ali"};

print(employee.clear());

what is the output of this code?

• {}

• Error

• True

• False

var user={33 : "ahmed"}; user["Name"]="33";

print(user.contiansKey("33"));

• True

• False

• Error

• ahmed

var car ={id="2525"};

print(car.contiansKey(id));

• True

• 2525

• False

• Error

const x; x=10;

print(x);

what is the output of this code?

final x; x=10;

print(x);

what is the output of this code?