javascript如何parseInt数组的值来总结他们

Question

如何parseInt数组中的数字将它们加起来。我在哪里添加parseInt？所以我可以把数组的总和值除以数组的长度值。它会在数组第一次陈述的地方完成，还是在总和的函数中完成？它一直没有工作对我来说

<script> 
    var studentArr = new Array(); 
    var scoreArr = new Array(); 

    function enter() { 

     var studentName = document.getElementById("inp").value; 
     studentArr.push(studentName); 

     var stuval = ""; 

     for(i=0; i < studentArr.length; i++) 
     { 
      stuval = stuval + studentArr[i] + "<br/>"; 
     } 

     document.getElementById("iop").innerHTML = stuval; 

     var studentScore = document.getElementById("inps").value; 
     scoreArr.push(studentScore); 

     var scoreval = ""; 

     for(i=0; i < scoreArr.length; i++) 
     { 
      scoreval = scoreval + scoreArr[i] + "<br/>"; 
     } 



    } 

    function summ() { 

     var grade; 
     var average; 
     var sum = parseInt(scoreArr.valueOf()); 

     if (scoreArr.valueOf() == 70) { 

       grade = "C"; 
       document.getElementById("opo").innerHTML = grade; 
     } 

     if (scoreArr.valueOf() == 80) { 

       grade = "B"; 
       document.getElementById("opo").innerHTML = grade; 
     } 

     if (scoreArr.valueOf() == 90) { 

       grade = "A"; 
       document.getElementById("opo").innerHTML = grade; 
     } 

     scoreArr.sort(function(a, b){return b-a}); 
     document.getElementById("hop").innerHTML = "Max Score is: <br>" + scoreArr[0]; 

     scoreArr.sort(function(a, b){return a-b}); 
     document.getElementById("lop").innerHTML = "Min Score is: <br>" + scoreArr[0]; 

     average = sum/scoreArr.length; 
     document.getElementById("aop").innerHTML = average; 

    } 

</script> 

Answer 1

像这样：

sum=0; 
for (i=1; i<randomArray.length; i++){ 
    sum += parseInt(randomArray[i]); 
} 
result = sum/randomArray.length;