正则表达式允许无限精度

Question

Following regex only allow till 2 precisions 以下正则表达式仅允许2精度

/^\d+(\.\d{1,2})?$/,

But it should allow any precssion ..how to change this regex to allow any precision value? 但是它应该允许任何精度..如何更改此正则表达式以允许任何精度值？

Like 12.212121212121212121212... 像12.212121212121212121212 ...

Now it only take two precision ... 1223232323.23 现在只需要两个精度... 1223232323.23

I have tried this not working .. 我试过这不起作用..

/^\d+(\.\d{1,All})?$/,

Answer 1

/^\\d+(\\.\\d{1,})?$/

要么：

/^\\d+(\\.\\d+)?$/

Answer 2

应该这样：

/^\d+(\.\d+)?$/