如何格式化JavaScript中的数字？
问题描述：
如何在JavaScript中格式化数字？
How to format numbers in JavaScript?
- JavaScript culture sensitive currency formatting
答
您使用JavaScript的最佳方法是对您的数字使用toFixed（）和toPrecision（）函数。
The best you have with JavaScript is toFixed() and toPrecision() functions on your numbers.
var num = 10;
var result = num.toFixed(2); // result will equal 10.00
num = 930.9805;
result = num.toFixed(3); // result will equal 930.981
num = 500.2349;
result = num.toPrecision(4); // result will equal 500.2
num = 5000.2349;
result = num.toPrecision(4); // result will equal 5000
num = 555.55;
result = num.toPrecision(2); // result will equal 5.6e+2
货币，逗号和其他格式必须是由您或第三方图书馆完成。
Currency, commas, and other formats will have to be either done by you or a third party library.