extract function invalid

[chengguotao]

extract('2022-02-01','(d{4})-(d{2})-(d{2})')
extract('foo.bar', '(w+).(w+)')
The extract function do not seem to work, returning "sptrs":[]

[stefan-gorules]

Hi @chengguotao, you need to use backslashes \. Here's the fixed version:

[chengguotao]

aaa.bbb.ccc.ddd
How to split by '.', get all letters, (\w+).(\w+) This way can only get the first '.' match