如手機號碼18854112211,中間用’*'代替,顯示188****2211
let phone='18854112211'
方法1(字符串的截取):
var showPhone = phone.substr(0,3)+'****'+phone.substr(7);
方法2(正則表達式):
var showPhone = phone.replace(/^(\d{3})\d{4}(\d+)/,"$1****$2")
測試結果: 188****2211
如手機號碼18854112211,中間用’*'代替,顯示188****2211
let phone='18854112211'
var showPhone = phone.substr(0,3)+'****'+phone.substr(7);
var showPhone = phone.replace(/^(\d{3})\d{4}(\d+)/,"$1****$2")
測試結果: 188****2211