Regular Expressions For 4 Or 6 Digits

Regular Expressions that exactly match 4 or 6 digits, which are typically used in Pin Code.

4 Digits Regex:

/^[0-9]{4}$/

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6 Digits Regex:

/^[0-9]{6}$/

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See Also:

• Regular Expression To Check Non-digit Characters
• Regex To Match One Digit Number