OptionPatterns extension

Adds pattern-matching-related methods to Option.

on

• Option

Methods

map<TResult extends Object?>(TResult $default(_Option value)) → TResult

Available on Option, provided by the OptionPatterns extension

A switch-like method, using callbacks.

mapOrNull<TResult extends Object?>(TResult? $default(_Option value)?) → TResult?

Available on Option, provided by the OptionPatterns extension

A variant of map that fallback to returning null.

maybeMap<TResult extends Object?>(TResult $default(_Option value)?, {required TResult orElse()}) → TResult

Available on Option, provided by the OptionPatterns extension

A variant of map that fallback to returning orElse.

maybeWhen<TResult extends Object?>(TResult $default(String id, String name, List<String> values)?, {required TResult orElse()}) → TResult

Available on Option, provided by the OptionPatterns extension

A variant of when that fallback to an orElse callback.

when<TResult extends Object?>(TResult $default(String id, String name, List<String> values)) → TResult

Available on Option, provided by the OptionPatterns extension

A switch-like method, using callbacks.

whenOrNull<TResult extends Object?>(TResult? $default(String id, String name, List<String> values)?) → TResult?

Available on Option, provided by the OptionPatterns extension

A variant of when that fallback to returning null