How to set different separator with \s in awk?

Question

text(After 1 is blank(space \t\f\v) ):

1    23.4,56

I want result of print $3 is 4. But run echo "1 23.4,56" | awk -F'[\\s+|,|.]' '{print $3}' , result is 56

Answer 1

I want result of print $3 is 4.

Some changes to FS and your code can get it:

echo "1    23.4,56" | awk -F'[,.]|[[:blank:]]+' '{print $3}'
4