用some，减少对比的次数

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
    </head>
    <body>
        
        <script>
            const _isSameSet = (s1, s2) => {
                // 补全代码
                if (s1.size !== s2.size) return false
                const flag = Array.from(s1).some(item => !s2.has(item))
                return !flag;
            }
        </script>
    </body>
</html>