代码示例:(标识:js_string_matchall_3)
<!DOCTYPE html>
<html>
<body>

<h1>JavaScript 字符串</h1>

<h2>matchAll() 方法</h2>

<p>ES2020 引入了字符串方法 matchAll()。</p>

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

<script>
let text = "I love cats. Cats are very easy to love. Cats are very popular."
const iterator = text.matchAll(/Cats/gi);

document.getElementById("demo").innerHTML = Array.from(iterator);
</script>

</body>
</html>
运行结果: