JavaScript中的问题 [英] Problem in JavaScript

问题描述

我有一些javascript行如下：

I have some lines of javascript as below:

var start = str.split("-")[0];
var end = str.split("-")[1];
alert(start + " " + end);
for(strt=start;strt<=end;strt++)
{
    alert(strt);
}

现在，如果我给str小于10的值，即1-9,7-9
或大于等于10，即10-12,10-15,11-40它工作正常..但如果我在范围之间包括10，即6-12,8-12,9-11等它不起作用..我无法弄清楚..仍在尝试调试...有人请和我一起调试这个！



我通过将8-12这样的情况分解为8-9和10-12等待处理的部分来解决问题，但是如果可以直接处理则更好。

Now, If i give value for str less than 10 i.e. 1-9, 7-9
or greater than equal to 10 i.e. 10-12, 10-15, 11-40 It works fine.. but of if I include 10 in between range i.e. 6-12, 8-12, 9-11 etc. It doesn't work.. I am unable to figure out.. still trying to debug... will anyone please join me to debug this out!

I fount the solution by breaking a case like 8-12 into parts to be processed like 8-9 and 10-12, but it'd be better if direct processing could be done.

推荐答案

您正在比较字符串值而不是数字。由于字符'6'大于字符'1'，因此您的循环将永远不会执行。



在处理之前将值转换为数字：

You're comparing string values instead of numbers. Since the character '6' is greater than the character '1', your loop will never execute.

Convert the values to numbers before processing them:

var str = "6-10";

var parts = str.split("-");
var start = parseInt(parts[0]);
var end = parseInt(parts[1]);

alert(start + "-" + end);

for (var strt = start; strt <= end; strt++)
{
    alert(strt);
}

http：// jsfiddle .net / YrGHx / [ ^ ]

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