has_element: Check if an Object is Element of a List

In mlr-org/mlr3misc: Helper Functions for 'mlr3'

Check if an Object is Element of a List

Description

Simply checks if a list contains a given object.

• NB1: Objects are compared with identity.

• NB2: Only use this on lists with complex objects, for simpler structures there are faster operations.

• NB3: Clones of R6 objects are not detected.

Usage

has_element(.x, .y)

Arguments

.x	(list() | atomic vector()).
.y	(any) Object to test for.

Examples

has_element(list(1, 2, 3), 1)

mlr-org/mlr3misc documentation built on April 28, 2024, 11 p.m.