on_missing_key: On missing key behaviour

In r2r: R-Object to R-Object Hash Maps

On missing key behaviour

Description

These generics are used to get or set the behaviour of an hashmap upon query of a missing key (currently, only an hashmap method is implemented).

Usage

on_missing_key(x)

on_missing_key(x) <- value

## S3 method for class 'r2r_hashmap'
on_missing_key(x)

## S3 replacement method for class 'r2r_hashmap'
on_missing_key(x) <- value

Arguments

x	an hashmap.
value	a string, either "throw" or "default". Action to be taken upon query of a missing key.

Details

For more details, see the hashtable documentation page.

Value

a string, either "throw" or "default".

Author(s)

Valerio Gherardi

Examples

m <- hashmap()
on_missing_key(m)
on_missing_key(m) <- "throw"

r2r documentation built on April 3, 2025, 10:57 p.m.