Javascript:格式化数字的更简单方法?

问题描述

我正在尝试格式化页面上的各种数字.这些数字代表价格、价格变化或百分比.我知道 Javascript 具有限制小数位数的功能，但是是否支持其他类型的格式，例如用逗号对数字进行分组，控制是否显示 +/- 等?到目前为止，这是我所拥有的:

I'm trying to format various numbers on my page. These numbers either represent a price, a change in price, or a percentage. I know Javascript has functions to limit the number of decimal places, but is there any support for other types of formatting, such as grouping numbers with commas, controlling whether or not the +/- is shown, etc? Here's what I have so far:

var FORMATTER = {
    price       : function(value) { return '$' + value.toFixed(2); },
    pricePer    : function(value) { return (value * 100).toFixed(2) + '%'; },
    priceChg    : function(value) { return (value >= 0 ? '+' : '-') + '$' + Math.abs(value).toFixed(2); }
};

它工作正常，但它想在price"格式化程序中添加逗号，您可以看到priceChg"格式化程序中有一个黑客，我尝试将 +/- 符号移到'$' 符号.

It works OK, but it'd like to add commas to the 'price' formatter, and you can see that there's a hack in the 'priceChg' formatter where I try to move the +/- sign in front of the '$' sign.

基本上，我希望有一些库可以模拟 Java 的 DecimalFormat 类.

Basically, I'm hoping there is some library out there (jQuery is OK) that emulates Java's DecimalFormat class.

推荐答案

这里有NUMBERFORMATTER jQuery插件，详情如下:

There's the NUMBERFORMATTER jQuery plugin, details below:

https://code.google.com/p/jquery-numberformatter/

从上面的链接:

这个插件是一个 NumberFormatter插入.数字格式可能与任何合作过的人都熟悉服务器端代码，如 Java 或 PHP 和谁合作过国际化.

This plugin is a NumberFormatter plugin. Number formatting is likely familiar to anyone who's worked with server-side code like Java or PHP and who has worked with internationalization.

将链接替换为更直接的链接.

Replaced the link with a more direct one.

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