CODEWITHSUNDEEP
javascriptregex
Beyg
Beyg

Reputation: 31

regular expression for six digit numbers prefixed with 3 letters

Is this the correct regular? 

^[ASB]{3}[0-9]{6,}$

I want to validate the number (using JavaScript) which should have three prefixed letters ASB followed by 6 digits e.g. ASB673567

Upvotes: 0

Views: 54

Answers (1)

Avinash Raj
Avinash Raj

Reputation: 174706

You need to remove the first character class,. [ASB] matches any one of the character from the given list, that is here it may match A or S or B. So by repeating the character class exactly three times, [ASB]{3} not only matches ASB but also AAA or AAB or .......

^ASB[0-9]{6,}$

This would match 6 or more digits prefixed with ASB

For exactly 6 digits.

^ASB[0-9]{6}$

Upvotes: 1

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