如何在JavaScript中计算四个文本框的总值 [英] How to calculate thetotal value of a four text box in javascript

问题描述

我的应用程序中有四个文本框，我想检查四个文本框的总数是否等于100.如果它小于或大于一百，我想通过错误来告知客户.应该在javascript的keyUp或文本更改事件中完成.如何执行.

在Advance中致谢

Hi,

I am having four text boxes in my application I want to check whether the total of the four text boxes should be equal to hundred. If it is less than and greater than hundred I want to through the error to the customer. It should be done in the keyUp or text change event using javascript. How to do this .

Thanks in Advance

推荐答案

将class ="calculate"添加到您的4个文本框中

add class="calculate" to your 4 textboxes

(' .calculate' span()(' keyup'， function (){ var sum = 0 ;

('.calculate').on('keyup', function(){ var sum = 0;

(.calculate').each( parseFloat (

('.calculate').each(function(){ sum += parseFloat(

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