R.oo (version 1.7.5)

hasField.Object: Checks if a field exists or not

Description

Checks if a field exists or not.

Usage

## S3 method for class '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

obj <- Object()
   obj$x <- 1:100
   obj$y <- 100:1
   hasField(obj, c("x", "a", "b", "y"))

   gives:
 
   [1] TRUE FALSE FALSE TRUE