如何使用JavaScript查找1到N之间的所有数字的总和 [英] How to find the sum of all numbers between 1 and N using JavaScript

问题描述

我正试图找到一种方法来使用JavaScript计算1到N之间所有数字的总和。以下是我到目前为止尝试的代码，但它似乎不起作用。

I'm trying to find a way to calculate the sum of all numbers between 1 to N using JavaScript. The following is the code I have tried so far but it doesn't seem to work.

function numberSum(N) {
  var total = 0;
    for(var i = 1; i <= N; i++){
      total += i;
    }
    return total;
}

我尝试在线使用jslint和其他验证工具来检查我是否可能错过了但是这似乎没有帮助我找到代码无法工作的原因。是否有一些我在上面遗漏的东西阻止脚本执行添加？

I have tried using jslint and other validators online to check if I might have missed something but that doesn't seem to help me find the reason for the code not working either. Is there something that I'm missing above that's preventing the script from executing the addition??

推荐答案

您的代码没问题。

保持简单：

var res = (n * (n+1)) / 2;

Wiki 。

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