日常开发记录-金额格式转换-千分号

千分号:

// 方法一：正则
const qian = num => `${num}`.replace(/(\d)(?=(?:\d{3})+$)/g, '$&,')
console.log(qian(5000000)) // 60,000,000


function toThousands (num) {
  return (num || 0).toString().replace(/(\d)(?=(?:\d{3})+$)/g, '$1,')
}
console.log(toThousands(5000000)) //



// 方法二：toLocaleString
console.log((60000000).toLocaleString()) // 60,000,000