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Create types with Semigroups

Use chain for composable error handling with nested Eithers

A collection of Either examples compared to imperative code

Semigroup examples

Ensure failsafe combination using monoids

javascript tutorial about Create types with Semigroups

Create types with Semigroups

5:52 javascript

An introduction to concatting items via the formal Semi-group interface. Semi-groups are simply a type with a concat method that are associative. We define three semigroup instances and see them in action.

javascript tutorial about Use chain for composable error handling with nested Eithers

Use chain for composable error handling with nested Eithers

3:57 javascript

We refactor a function that uses try/catch to a single composed expression using Either. We then introduce the chain function to deal with nested Eithers resulting from two try/catch calls.

javascript tutorial about A collection of Either examples compared to imperative code

A collection of Either examples compared to imperative code

2:05 javascript

A tour of simple functions rewritten as composed expressions using Either set to 8 byte music and colorful flying blocks

javascript tutorial about Semigroup examples

Semigroup examples

2:01 javascript

A few examples of Semigroup definitions

javascript tutorial about Ensure failsafe combination using monoids

Ensure failsafe combination using monoids

4:33 javascript

In this video we define monoids and promote our semigroups

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