Programming in Dart: Fundamentals

Apr 26 2022 · Dart 2.15, DartPad, DartPad

Part 1: Fundamentals

05. Use Logical Operators

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Previous episode: 04. Challenge: Play with Booleans Next episode: 06. Set Conditional Values

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In the previous set of exercises, you saw how you can work with Boolean values, and how you could use comparison operators such as less than, greater than, equal to and not equal to to compare values to each other.

const passingGrade = 50;
const studentGrade = 50;
const chrisGrade = 49;
const samGrade = 99;
const studentPassed = studentGrade >= passingGrade;
const chrisPassed = chrisGrade >= passingGrade;
const samPassed = samGrade >= passingGrade;
print(chrisPassed == false);
const catName = 'Jaspurr';
// print(!catName);
// AND Operator
// &&
const bothPassed = chrisPassed && samPassed;
// OR Operator
// ||
const eitherPassed = chrisPassed || samPassed;
const anyonePassed = chrisPassed || samPassed || studentPassed;
const anyonePassed = chrisPassed && samPassed && studentPassed;
const meritAwardGrade = 90;
const samHasPerfectAttendance = true;
const samIsMeritStudent = samHasPerfectAttendance && samGrade > meritAwardGrade;