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ghūl

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expression oriented programming

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unions and pattern matching

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expression-oriented code

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assert in expressions

functional programming

first class functions

map filter reduce

expression bodies

pure functions

self recursion

mutual recursion

immutable data

higher order functions

custom operator

if and case expressions

unions

currying

partial application

streams

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lists and ranges

filter

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object-oriented programming

unions

shape areas

labelling shapes

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lookups

pattern matching

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chained clauses

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if let guards

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match by value

while let

nested destructuring

generics

optional types

reading optionals

presence narrowing

coalescing

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asynchronous code

compute

classify

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sum doubled

divide then double

generators

basic generator

composing generators

fibonacci

type inference

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array and tuple literals

destructuring

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type arguments from later use

function literals from call context

function literal return types

iterative inference

bidirectional convergence

closures and currying

generic function arguments

union narrowing

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