检查值是否为整数的最佳方法? Coldfusion 9 [英] Best way to check if value is integer ? Coldfusion 9

问题描述

我有要测试的字段，请确保它们仅接受integers.功能很少，但是我不确定哪个是最好的.首先，我尝试了isValid("integer",value)，但是我发现"1,5"将被接受为整数.因此，我尝试了isNumeric(value)，但这将接受1.5之类的值.我想知道什么是检查整数的最佳方法?也许两个结合了这两个功能，如:

I have fields to test and make sure they only accept integers. There is few functions but I wasn't sure which one is the best. First I tried isValid("integer",value) but I have discovered that "1,5" will be accepted as an integer. So then I tried isNumeric(value) but this will accept values like 1.5. I'm wondering what should be the best way to check for integers? Maybe two combine these two functions like:

<cfif isValid("integer",value) AND isNumeric(value)>

还是有更好的方法呢?

推荐答案

您可以尝试以下方法:

value = replace(value, ',', '', 'all');
numberIsInteger = isNumeric(value) && round(value) == value ? true : false;

注意 人们通常包括大量逗号，例如1,000,000. isNumeric将对该字符串返回false，其他答案中的refind函数也将返回.

Note People often include commas in large numbers such as 1,000,000. isNumeric will return false for that string, as will the refind function in the other answers.

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