I am trying to validate dot and numbers.
Valid:
1.2.3 1.4.1 Invalid:
1.2.3. 1.2-3 1-2-3 I tried the following from another thread, it works with the valid, but it also passes the invalid with dash (-).
^\d+(.\d+)*$ Any betterment to the regex so it strict to validate only dot and digit?
Thanks
You need to escape the dot, which is otherwise "any character" in a regex:
^\d+(\.\d+)*$ If you need a variable number of dots and digits repeat digits & dots and put the last as only digit:
(\d+\.)+\d+ it matches 1.2.3 1.2.3.4 and so on
If you need fixed length of digits put the number of repetitions instead of the + operator
(\d+\.){2}\d+ #for 1.2.3 (\d+\.){1}\d+ #for 1.2 
use this regular expression ^\d+\.\d+\.\d+$
your misstake in dot, dot mean any symbol
The dot matches all characters, you should use \.
^\d+(\.\d+)*$
But this would also validate any number without dot, when at least 1 dot should be present use:
(\d+\.)+\d+
