JavaScript 源属性

javascriptweb developmentobject oriented programming更新于 2025/12/13 16:44:17

JavaScript 源属性返回与给定模式匹配的正则表达式文本。

以下是源属性的代码 −

示例

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
<style>
   body {
      font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
   }
   .sample,
   .result {
      font-size: 18px;
      font-weight: 500;
      color: red;
   }
   .result {
      color: rebeccapurple;
   }
</style>
</head>
<body>
<h1>JavaScript source property</h1>
<div class="sample">The king bought a ring</div>
<div class="result"></div>
<button class="btn">点击此处</button>
<h3>
Click on the above button to get the regex source text
</h3>
<script>
   let resultEle = document.querySelector(".result");
   let pattern = /ing/gi;
   document.querySelector(".Btn").addEventListener("click", () => {
      resultEle.innerHTML = "Regexp text = " + pattern.source;
   });
</script>
</body>
</html>