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

<h1>JavaScript 字符串方法</h1>

<h2>italics() 方法</h2>

<p id="demo1"></p>

<p>italics() 方法在 JavaScript 中已被弃用。</p>

<p>请使用 i 标签代替:</p>

<p id="demo2"></p>

<script>
let text = "Hello World!";
let result = text.italics();
document.getElementById("demo1").innerHTML = result;

text = "<i>Hello World!</i>"
document.getElementById("demo2").innerHTML = text;
</script>

</body>
</html>
运行结果: