Combine two validator objects by addition. A new validator object is created with default (global) option values. Previously set options are ignored.
validator
# S4 method for validator,validator +(e1, e2)
a validator
Other validator-methods: plot,validator-method, validator
plot,validator-method
# NOT RUN { validator(x>0) + validator(x<=1) # }
Run the code above in your browser using DataCamp Workspace