ReasonML: Hands-On Intro
By: Rob Hilgefort
Rob Hilgefort
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Email: rjhilgefort@gmail.com
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Twitter: @rjhilgefort
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GitHub: rjhilgefort
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Web: http://rob.hilgefort.me
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10 Years Professional JS
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3 Years FP in JS
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6 Months ReasonML
Why ReasonML...?
JavaScript
- JavaScript isn't opinionated and tries to support OOP and FP equally (debatably).
- JavaScript is ... JavaScript.
- Defensive Coding
FP By Default
- Immutable
- Auto-curried
- Composition- Pipe operator
- Pattern Matching
- Plus more...
Statically Typed
- Battle tested Ocaml compiler and type system
- 100% coverage
Isomorphic
- Runs on the BE and FE
- JS is popular largely due to this
- Can run natively on BE if desired
Batteries Included DX
| TypeScript/Flow | ReasonML |
|---|---|
| Prettier | Reformat |
| Babel | BuckleScript |
| Immutable.js | ReasonML |
| Ramda.js | ReasonML |
| Maybe Monad | ReasonML |
Ecosystem
REPL Examples Topics
- Imperative Loops
- Mutating
- Currying
- Partial Applications
- Basic Types
- Pervasives (Built-Ins)
- Infix Operators
- Strings
- Bucklescript / JS Funcs
- Expressions, Blocks
- Implicit Returns
- Switch Expressions
- Pipe Operator
- Composition
- Modules
- Variants
- Pattern Matching
- Variant Constructors
- Record Type
- Shorthands (Fn, Switch)
- Labeled Arguments
- Option Variant
- Fast Piping
😱 Live Coding 😱
Thank You
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Email: rjhilgefort@gmail.com
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Twitter: @rjhilgefort
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GitHub: rjhilgefort
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Web: http://rob.hilgefort.me