转换字符串货币答案

【问题标题】：Converting String currency转换字符串货币
【发布时间】：2016-10-26 06:32:57
【问题描述】：

如何从字符串转换数字，并返回相同的格式？

//INPUT as STRING
var dollar1 = "US $59.99 - 69.99 / piece"
var dollar2 = "US $237.50 - 277.50 /lot"
var US_to_MUR_rate = 35;
//FUNCTION
function convert ( string, rate) {
//what should be here ?

return str_converted;
}

//EXPECTED OUPUT as STRING:
var ruppes1 = convert (dollar1, US_to_MUR_rate);
var ruppes2 = convert (dollar2, US_to_MUR_rate);
console.log(rupees1);
"MUR Rs2099.65 - 2449.65 / piece"
console.log(rupees2);
"MUR Rs8032.5 - 9712.5 /lot"

【问题讨论】：

使用 Number() 或根据可能是 int 或 float 解析它然后进行计算。要使其成为字符串只需添加 ""

标签： javascript jquery string numbers

【解决方案1】：

//INPUT as STRING
var dollar1 = "US $59.99 - 69.99 / piece"
var dollar2 = "US $237.50 - 277.50 / lot"
var dollar3 = "US $54 - 60 / lot"
var US_to_MUR_rate = 35;

//FUNCTION
function convert ( string, rate) {
  return string
    .replace(/\d+(?:\.\d+)?/g, function(match) {
      return (parseFloat(match) * US_to_MUR_rate).toFixed(2);
    })
    .replace(/US \$/, 'MUR Rs');
}

//EXPECTED OUPUT as STRING:
var rupees1 = convert (dollar1, US_to_MUR_rate);
var rupees2 = convert (dollar2, US_to_MUR_rate);
var rupees3 = convert (dollar3, US_to_MUR_rate);

console.log(rupees1);
console.log(rupees2);
console.log(rupees3);

【讨论】：

但它不再适用于整数。请更新

【解决方案2】：

当然，这个答案的某些部分是明确编码的，除非你想要不同

var dollar1 = "US $59.99 - 69.99 / piece"
var dollar2 = "US $237.50 - 277.50 /lot"
var US_to_MUR_rate = 35;

function convert(string, rate){
	var converted_price = string.match(/(\d+)\.(\d*)/g).map(function(number){
		return (number*rate).toFixed(2)
	})
	var unit = string.match(/(\/\s*\w+)/g)
	return "MUR Rs"+converted_price.join(' - ')+" "+unit
}

var rupees1 = convert(dollar1, US_to_MUR_rate);
var rupees2 = convert(dollar2, US_to_MUR_rate);
console.log(rupees1);
console.log(rupees2);

【讨论】：