has_element

:: (<code>list()</code> or atomic <code>vector</code>).

:: <code>any</code>
Object to test for.

Simply checks if a list contains a given object.<ul>
<li>NB1: Objects are compared with identity.</li>
<li>NB2: Only use this on lists with complex objects, for simpler structures there are faster operations.</li>
<li>NB3: Clones of R6 objects are not detected.</li>
</ul>

Frequently used helper functions and assertions
used in 'mlr3' and its companion packages. Comes with helper functions
for functional programming, for printing, to work with 'data.table',
as well as some generally useful 'R6' classes. This package also
supersedes the package 'BBmisc'.

Michel Lang

has_element: Check if an Object is Element of a List

Description

Usage

Arguments

Examples