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'C12345678'.match("^C\d{8}$") and 

'C12345678'.match("^C\[0-9]{8}$")

Why does this statement has different values?

Rajaprabhu Aravindasamy
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Nguyen Tran
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1 Answers1

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Because in the first case you need to escape the backslash:

   console.log('C12345678'.match("^C\\d{8}$"));

Edit

As pointed out by Wiktor in the comment below, it's best to use the Regex literal syntax:

    console.log('C12345678'.match(/^C\d{8}$/));
Community
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Cristian Lupascu
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    Best is `/^C\d{8}$/` since it is readable, does not require using double backslashes to escape special characters and because the pattern is static. – Wiktor Stribiżew Sep 16 '16 at 09:41