This question already has answers here:
Sum of two numbers with prompt
(8个答案)
Adding two numbers concatenates them instead of calculating the sum
(20个答案)
2年前关闭。
我试图找到数组中元素的总和
我的输入是:1 2 3 4 5
输出应为:15
我收到的输出:012345
(8个答案)
Adding two numbers concatenates them instead of calculating the sum
(20个答案)
2年前关闭。
我试图找到数组中元素的总和
我的输入是:1 2 3 4 5
输出应为:15
我收到的输出:012345
<html>
<head>
</head>
<body>
<script>
var numbers=[];
var sum=0;
for (var i=0;i<5;i++)
{
numbers.push(prompt('Enter Your Numbers'));
sum += numbers[i];
}
function getSumOfArray() {
return sum;
}
document.write("The Sum of Array: "+getSumOfArray()+"<br />");
</script>
</body>
</html>
最佳答案
通过调用parseFloat()将字符串输入转换为数字,应该可以解决此问题。
<html>
<head>
</head>
<body>
<script>
var numbers = [];
var sum = 0;
for (var i = 0; i < 5; i++)
{
numbers.push(parseFloat(prompt('Enter Your Numbers')));
sum += numbers[i];
}
function getSumOfArray() {
return sum;
}
document.write("The Sum of Array: " + getSumOfArray() + "<br />");
</script>
</body>
</html>
关于javascript - js中数组的总和,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/49502506/
10-12 17:58