JavaScript 多行属性

javascriptweb developmentobject oriented programming更新于 2025/12/11 13:00:17

JavaScript 多行属性返回 true 或 false，具体取决于是否已设置 ‘m’ 修饰符。

以下是 JavaScript 多行属性的代码 −

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;
   }
</style>
</head>
<body>
<h1>JavaScript Math Object</h1>
<div class="sample">The king bought the ring</div>
<div style="color:black" class="result"></div>
<div style="font-weight: bold; color: black;" class="result"></div>
<button class="btn">点击此处</button>
<h3>
Click on the above button to see if m modifier has been set or not
</h3>
<script>
   let resultEle = document.querySelector(".result");
   document.querySelector(".Btn").addEventListener("click", () => {
      let pattern = /ing/gm;
      let result = pattern.multiline;
      if(result) resultEle.innerHTML = 'The "m" modifier has been set';
      else resultEle.innerHTML = 'The "m" modifier has not been set';
   });
</script>
</body>
</html>