js操作字符串万分感谢

Question

z333sb666zh333返回falsez555sb888x666返回truez555sb888（）（）x666返回true（两个空格）匹配字符串必须是字母+数字

Answer 1

将字符串按照空格进行拆分，对每一段进行校验即可，只要其中一个不满足，那么整段字符串就不满足要求
functionhasLetterAndNum(str){
returnstr.split(/\s+/).every(item=>/^(?=.*?[0-9])(?=.*?[a-z])[0-9a-z]+$/.test(item))
}
测试：
hasLetterAndNum('qwerty')//false
hasLetterAndNum('123456')//false
hasLetterAndNum('qwe123')//true
hasLetterAndNum('qwe123qweabc46')//false
hasLetterAndNum('qwe1235566abc46')//false
hasLetterAndNum('qwe1235566cabc46')//true
hasLetterAndNum('qwe1235566cabc46')//true