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

<h1>JavaScript 正则表达式</h1>

<p>如果设置了 "i" 修饰符,则 ignoreCase 属性返回 true,否则返回 false:</p>

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

<script>
let text = "Visit (www.sou-xun.com)!";
let pattern = /sou/i;
let result = pattern.ignoreCase;
document.getElementById("demo").innerHTML = result;
</script>

</body>
</html>
运行结果: