ໂປຣແກຣມຄຳນວນເກຣດແບບໂຄດດດດງ່າຍ

	let score = prompt("your score:")
	if (score >= 80 && score <= 100){
	  document.getElementById("result").innerHTML = "<h1>Your Grade is: A </h1>"
	}
	else if (score >= 70&& score <= 80) {
	   document.getElementById("result").innerHTML = "<h1>Your Grade is: B </h1>"
	}
	else if (score >= 60 && score <= 70 ){
	   document.getElementById("result").innerHTML = "<h1>Your Grade is: C+ </h1>"
	}
	else if (score >= 50 && score <= 60 ){
	   document.getElementById("result").innerHTML = "<h1>Your Grade is: C </h1>"
	}
	else if (score >= 40 && score <= 50 ) {
	   document.getElementById("result").innerHTML = "<h1>Your Grade is: D </h1>"
	}
	else if (score <= 30 && score <= 40){
	   document.getElementById("result").innerHTML = "<h1>Your Grade is: F. Babe You fail but don't cry </h1>"
	}
	else {
	   document.getElementById("result").innerHTML = "<h1>Haha don't play with me </h1>"
	}