R.oo (version 1.22.0)

hasField.Object: Checks if a field exists or not

Description

Checks if a field exists or not.

Usage

# S3 method for Object
hasField(this, field, ...)

Arguments

field

vector of fields to be checked if they exists or not.

...

Not used.

Value

Returns a logical vector indicating for each field if it exists or not.

See Also

To get the fields of an Object, see *getFields(). For more extensive information about the fields in an Object see *ll(). For more information see Object.

Examples

# NOT RUN {
  obj <- Object()
  obj$x <- 1:100
  obj$y <- 100:1
  hasField(obj, c("x", "a", "b", "y"))

  
# }
# NOT RUN {
  gives:

  [1] TRUE FALSE FALSE TRUE
  
# }