JQuery繁殖并添加 [英] JQuery multiply and add

问题描述

假设我有一些我希望成倍增加的数字。

Let's say I have some numbers that I want to multiply and add.

var a = 5;
var b = 10;
var c = 2;
var d = 3;

我想将b和c相加然后乘以a，然后加上d。容易吗？

I want to sum b and c then multiply that by a, then add d. Easy right?

如果是正常的等式，公式看起来像：（a *（b + c）+ d）

If if were a normal equation the formula would look like: (a * (b + c) + d)

但是我如何在JQuery中做到这一点？

But how do I do that in JQuery?

（注意：JQuery的原因是我将从字段和div中获取这些数字......并在其他地方放置总数等）。

(Note: the reason for JQuery is that I'll be getting these numbers from fields and divs... and placing a total elsewhere, etc.)

推荐答案

默认情况下，脚本语言不知道类型为 int 或浮。所以你可以通过将1乘以你期望的数字来解决这个问题。

By default script language does not know type as int or float. So you can fix that by multiplying 1 to the value you expect to be a number.

var a = 5;
var b = 10;
var c = 2;
var d = 3; 

var total = a*1 * (b*1 + c*1) + d*1;

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