正则匹配名字为多种情况星号如何操作

Question

1 杨名 》 杨*
2 胡欣欣 》 胡**

Answer 1

var arr=[&nbsp; &nbsp; &nbsp; &nbsp; '杨名',&nbsp; &nbsp; &nbsp; &nbsp; '胡欣欣',&nbsp; &nbsp; &nbsp; &nbsp; '司徒娃娃啊'&nbsp; &nbsp; ]&nbsp; &nbsp; var reg=/(?<=.)./g;&nbsp; &nbsp; arr=arr.map(function(item){&nbsp; &nbsp; &nbsp; &nbsp; return item.replace(reg,'*');&nbsp; &nbsp; })&nbsp; &nbsp; console.log(arr);

Answer 2

str.replace(/(.)(.*)/,(_, $1, $2) => $1 + '*'.repeat($2.length))