Multiple filters in a regex

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I need to validate an input field that can have the following formats:

'D-1' ou 'D-10' ou 'D-1_1' ou 'D-10_1' ou 'D-1A' ou 'D-10A'

Letters and numbers may vary, but will always have one of these formats.

javascript html regex

asked by anonymous 01.12.2017 / 01:22

1 answer

doubts firebase with ionic (ion-select) Error with array passing in foreach

score 0 · Accepted Answer

Use this regex:

([a-zA-Z]+-\d+_{0,1}[a-zA-Z0-9]*)

Explanation:

[a-zA-Z]+ Valid if one or more than one letter exists.
- Validates whether the - character exists after the letter.
\d+ Valid if one or more number exists.
_{0,1} Checks if after the previous sequence there exists the character _ if it exists it enters the capture group.
[a-zA-Z0-9]* Check if there are any letters or numbers after _ , if these characters are entered in the capture group.