如何在Javascript中使用比较运算符作为两个输入值 [英] How to use comparison operator in Javascript for two input values

问题描述

我想比较两个输入值，只是尝试使用javascript，但它没有正常工作。我正在使用以下代码

I want to compare the two input values, just try in javascript, but it's not working fine. I'm using the following code

function check_closing()
{
var opening = $('#opening').val();
var closing = $('#closing').val();
if(opening > closing)
{
    alert('Opening is greater than Closing. Please enter the correct value');
    $('#closing').val('');
}
}

如果开盘价输入= 8541，收盘价就像= 8241它工作正常，但如果收盘价为954则无法正常工作。请帮忙。

if the opening value input = 8541, closing value like = 8241 it's work fine, but if the closing is 954 it's not working. Please help.

提前致谢。

推荐答案

转换字符串比较之前的整数：

Convert the strings to integers before comparison:

function check_closing()
{
    var opening = $('#opening').val();
    var closing = $('#closing').val();
    if(parseInt(opening) > parseInt(closing))
    {
        alert('Opening is greater than Closing. Please enter the correct value');
        $('#closing').val('');
    }
}

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