How to find the total score of three subjects in javascript

Javascript method to find the total score of the three subjects: 1. Create a js sample file; 2. Find the total score of the three subjects through "var total=result result1 result2;".

The operating environment of this article: Windows 7 system, javascript version 1.8.5, Dell G3 computer.

javascript How to find the total score of three subjects?

js Enter the scores of three subjects to get the total score

Input js, java, SQL three subject scores, get the total score

Rendering

<script>
	var grade=prompt(&#39;请输入js成绩:&#39;);
    var grade1=prompt(&#39;请输入Java成绩:&#39;);
	var grade2=prompt(&#39;请输入sql成绩:&#39;);
	var result=parseFloat(grade);
	var result1=parseFloat(grade1);
	var result2=parseFloat(grade2);
	var total=result+result1+result2;
			alert(total);
			</script>

js Basic Tutorial"

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