javascript - 使用正则表达式从字符串中提取值失败

Question

我基本上是在尝试使用正则表达式从 API 收集数据，但是我的代码正在返回一个null值？

我正在使用的正则表达式字符串是这样的：

let matches;

await emails.data.forEach(obj => {
    console.log(obj.mail_text_only); // <div>Be sure to <a href="https://www.website.com/unlock/verifyemail.html?requestId=%2F5xHTj30QFhcXmoyOHSlXA%3D%3D&validationId=bk72uGeIEk6KWOGNE8xF%2Fs4roEANsL0Y5pgVorJIjAI%3D&bitmap=POSTPAID">confirm</a> your unlock request within 24 hours or it'll be canceled.</div>
    matches = obj.mail_text_only.match(/requestId=(.*)&validationId=(.*)&bitmap=(.*)"/g);
});

console.log(matches); //null

我的字符串格式如下：

<div>Be sure to <a href="https://www.website.com/unlock/verifyemail.html?requestId=%2F5xHTj30QFhcXmoyOHSlXA%3D%3D&validationId=bk72uGeIEk6KWOGNE8xF%2Fs4roEANsL0Y5pgVorJIjAI%3D&bitmap=POSTPAID">confirm</a> your unlock request within 24 hours or it'll be canceled.</div>

当我运行console.log(matches)它会抛出一个null结果？

标签： javascriptregex

Answer 1

有用。正则表达式没有引号。

let str = "https://www.website.com/unlock/verifyemail.html?requestId=%2F5xHTj30QFhcXmoyOHSlXA%3D%3D&validationId=bk72uGeIEk6KWOGNE8xF%2Fs4roEANsL0Y5pgVorJIjAI%3D&bitmap=POSTPAID"

let matches = str.match(/requestId=(.*)&validationId=(.*)&bitmap=(.*)/g);


console.log(matches);