用js实现隐藏手机号中间四位

1.通过字符串截取

let phone = \'18688886888\'
phone = phone.substring(0, 3) + \'****\' + phone.substr(phone.length - 4)
console.log(phone)

2.使用正则

 let phone = \'18688886888\'
 let reg = /^(\d{3})\d{4}(\d{4})$/
 phone = phone.replace(reg, \'$1****$2\')
 console.log(phone)