Programming in Dart: Fundamentals

Apr 26 2022 · Dart 2.15, DartPad, DartPad

Part 1: Fundamentals

06. Set Conditional Values

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Previous episode: 05. Use Logical Operators Next episode: 07. Challenge: Play with Logical Operators

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At this point, you should feel pretty good about working with logical operators. You’ve seen how combining them can produce a true or false value. But what if wanted to set a value based on the result of our logical operators? Often times, you’ll want to set a variable based on a condition.

Demo 1

We’ll get started by defining a message that we want to print out to console. So lets define a variable for the message to be presented.

String message;

var message;

String message;

const chrisHasPerfectAttendance = true;
const chrisGrade = 49;
const meritAwardGrade = 90;

const chrisIsMeritStudent = chrisHasPerfectAttendance && chrisGrade > meritAwardGrade;

if (chrisIsMeritStudent) {
    message = 'Congratulations';
}
print(message);

else {
    message = 'Keep studying';
}

const samGrade = 99;

const betterStudent 

const betterStudent = (samGrade > chrisGrade)

? 'Sam' : 'Chris';

print(betterStudent);