JS工具

1. 把数组的元素全部转化为Number类型

   var dd = ['11', '123', '56', '0156'];
   dd = dd.map(Number)
   console.log(dd) //[11, 123, 56, 156]

2. 将数字转化为千分符 ```javascript const num = 12654830.2650; const data = num.toLocaleString() console.log(data) //12,654,830.265

let nf = new Intl.NumberFormat(‘en-US’); console.log(nf.format(num)) //12,654,830.265 ```