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

<p>单击按钮以全局搜索字符串中的十六进制数0057(W)。</p>

<button onclick="myFunction()">试一试</button>

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

<script>
function myFunction() {
  var str = "Visit (www.sou-xun.com). Hello World!"; 
  var patt1 = /\u0057/g;
  var result = str.match(patt1);
  document.getElementById("demo").innerHTML = result;
}
</script>

</body>
</html>
运行结果: