Option

An Enum that mimics Rust's "Option" type. This is used to denote whether
a function returned an object or not, rather than returning <code>NULL</code>.

datasets

Inspired by pattern matching and enum types in Rust
and many functional programming languages, this package offers
an updated version of the 'switch' function called 'Match' that
accepts atomic values, functions, expressions, and enum variants.
Conditions and return expressions are separated by '->' and
multiple conditions can be associated with the same return expression
using '|'. 'Match' also includes support for 'fallthrough'. The
package also replicates the Result and Option enums from Rust.

Chris Mann

matchr

Pattern Matching and Enumerated Types in R

Option function

list with 1 Enum generators and 1 Enum variant<dl class="dl-horizontal">
 <dt>Some(x)</dt><dd>Wrap <code>x</code> in the 'Some' variant.</dd>
 <dt>None</dt><dd>Variant denoting that nothing was returned.</dd>
</dl>

Format

Option — Option

list with 1 Enum generators and 1 Enum variant<dl class='dl-horizontal'>
 <dt>Some(x)</dt><dd>Wrap <code>x</code> in the 'Some' variant.</dd>
 <dt>None</dt><dd>Variant denoting that nothing was returned.</dd>
</dl>

Option: Option

Description

Usage

Arguments

Format