Question

我有这些话

verification-asdflkaasidmf
verification-sadfim-aisdmfim

我想匹配第一个verification-asdflkaasidmf但不匹配第二个（有两个破折号）

Answer 1

另一种方法是：

import { AngularFireAuth } from 'angularfire2/auth';
model : any = {} ;
private afAuth : AngularFireAuth,

regWithEP () {
    this.afAuth.auth.createUserWithEmailAndPassword(this.model.email, this.model.password).then((user) => {
    /* IMPORTANT !! */
    /* EXPLICIT CHECK IF USER IS RETURNED FROM FIREBASE SERVICE !! */

          if (user) {
            console.log(user);
            /* Here user is available and is the same as auth.currentUser */

            this.afAuth.auth.currentUser.getToken().then((token) => {

            //token is available here
            //set token to currentUser, signIn , re-direct etc.
            });
        }
    });
}

其中包括以下内容：

^[^-]*\-[^-]*$

Answer 2

您可以使用此正则表达式：

/^\w+-\w+$/

此正则表达式匹配开头的单词，后跟连字符，后跟另一个单词。

let arr = ['verification-asdflkaasidmf',
'verification-sadfim-aisdmfim'
];

let regex = /^\w+-\w+$/;

for (i=0; i<arr.length; i++) {
  console.log(arr[i], regex.test(arr[i]));
}

正则表达式：如何匹配整个单词只有一个破折号不超过1破折号？

2 个答案: