代码示例:(标识:jsck_regexp_exec_2)
<!DOCTYPE html>
<html>
<body>

<h1>JavaScript 正则表达式</h1>

<p>exec() 方法测试(检索)字符串中的匹配项:</p>

<p id="demo"></p>

<script>
let text = "Hello world!";

// 查找 "Hello"
let result1 = /Hello/.exec(text);

// 查找 "(www.sou-xun.com)"
let result2 = /(www.sou-xun.com)/.exec(text);

document.getElementById("demo").innerHTML =
result1 + "<br>" + result2;
</script>

</body>
</html>
运行结果: