lovecoding
/
W0407


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        // i 不区分大小写
        // g 匹配全局
        const reg = /A/gi;
        const str = 'How are you,a';
        console.log(reg.test(str));
        console.log(str.match(reg));
    </script>
</body>
</html>