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I am looking to have a regular expression that allows only specific numbers to be entered, e.g. 2,4,5,6,10,18
I tried something like
"'2'|'4'|'5'|'6'|'10'|'18'"
and anything that i typed failed the regex and then the computer pointed its finger at me and laughed.
where am i going wrong?
The single quotes are unnecessary. The regex you are looking for is:
^(2|4|5|6|10|18)$.The symbols
^and$denote the start and the end of the line, to prevent121from matching (since it contains2).