JavaScript if else if else Condition
<script>
var marks = prompt("Enter you result");
if(marks>=80 && marks<=100){
document.write("student got A+");
}
else if(marks>=70 && marks<80){
document.write("student got A");
}
else if(marks>=60 && marks<70){
document.write("student got A-");
}
else if(marks>=50 && marks<60){
document.write("student got B");
}
else if(marks>=40 && marks<50){
document.write("student got C");
}
else if(marks>=33 && marks<40){
document.write("student got D");
}
else{
document.write("student got Failed");
}
//when a user enter a result then enter press, that time he has seen his grade.
</script>
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