jquery - Regex pattern in Javascript -


i want match string pattern has first 4 characters, "|" symbol, 4 characters, "|" symbol again , minimum of 7 characters.

for example, "test|test|test123" should matched.

i tried regexp("^([a-za-z0-9-|](4)[a-za-z0-9-|](5)[a-za-z0-9-|](3)+)$") this, didn't match test case.

test|test|test1234

ramesh, want?

^[a-za-z0-9-]{4}\|[a-za-z0-9-]{4}\|[a-za-z0-9-]{7,}$

you can try @ https://regex101.com/r/jilo6o/1

for example, following matched:

  • test|test|test123
  • a1-0|b100|c10-200
  • a100|b100|c100200

but following not:

  • a10|b100|c100200
  • a100|b1002|c100200
  • a100|b100|c10020

tips on modifying original code.

you have "a-za-z" intended "a-za-z", allow either upper or lower case.

to specify number of characters 4, use "{4}". there round brackets, need curly, specify count.

to specify range of number of characters, use "{lowerlimit,upperlimit}". leaving upper limit blank allows unlimited repeats.

we need escape "|" character because has special meaning of "alternate", in regular expressions, i.e. "a|b" matches either "a" or "b". writing "\|" regex interpreter knows want match "|" character itself.


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