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Ask the user to enter a GPA. If the value they enter is empty, null, or...

Ask the user to enter a GPA.

If the value they enter is empty, null, or non-numeric(isNaN()), or is not between 0.0 and 4.0 (inclusive), prompt them again.

Continue to prompt them until they enter a valid GPA input.

My javascript code below is not working.

let gpa="";

do{


gpa =parseFloat(prompt("Please enter your gpa"));
console.log(gpa);

}while (gpa==null || gpa === " " ||isNaN(gpa) || gpa <=0.0 || gpa>4.0);
var apg=gpa.toFixed(1);
document.write(" <h1> your gpa is </h1>" + apg);

engineering   Computer-Science   
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Homework Answers

Answer #1

<!DOCTYPE html>
<html>
<body>

<button onclick="myFunction()">Click me</button>


<script>
function myFunction() {
let gpa="";

do{


gpa =parseFloat(prompt("Please enter your gpa"));
console.log(gpa);

}while (gpa==null || gpa>4.0);
var apg=gpa.toFixed(1);
document.write(" <h1> your gpa is </h1>" + apg);

}
</script>

</body>
</html>

your gpa is 3.0

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