condition statement

pull/98/head
nam dang tran 5 years ago
parent 5ae60e1013
commit 6f863b0247

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>If-else conditional statement</title>
</head>
<body>
</body>
</html>
<script>
//Exercise lv1
// var age = window.prompt("Enter your age!");
// if (age >= 18) {
// alert("You are old enough to drive");
// } else {
// let ageNeed = 18 - age;
// alert(`You are left with ${ageNeed} to drive!`);
// }
// var yourAge = window.prompt("Enter your age!");
// (yourAge > 20) ? alert("You are older than me.") : alert("You are younger than me!");
//Exercise 2
let grade = window.prompt("Enter grade: ");
if (grade >= 0 && grade <= 100) {
if (grade >= 80 && grade <= 100) {
alert("A");
} else if (grade >= 70) {
alert("B");
} else if (grade >= 60) {
alert("C");
} else if (grade >= 50) {
alert("D");
} else alert("F")
}
</script>
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