Rescript JS Set

Rescript JS Set is a ReScript library that provides bindings to the JavaScript Set data type and WeakSet data type.

Installation

This package relies on the rescript-js-iterator package for Iterator bindings. Using yarn or npm:

yarn add rescript-js-set rescript-js-iterator

npm install --save rescript-js-set rescript-js-iterator

Update your bsconfig.json:

{
  "bs-dependencies": ["rescript-js-set", "rescript-js-iterator"]
}

Usage

module Set = Js_set

let set = Set.make()->Set.add("hello") // Set.t<string>
let size = set->Set.size // 1
let hasHello = set->Set.has("hello") // true
let hasWorld = set->Set.has("world") // false
let set = set->Set.add("world") // mutation
let hasWorld = set->Set.has("world") // true
let size = set->Set.size // 2
let wasDeleted = set->Set.delete("hello") // true
let size = set->Set.size // 1
set->Set.clear
let size = set->Set.size // 0

module WeakSet = Js_weak_set

let value = {"hello": "world"}
let value2 = {"foo": 12345}
let weakSet = WeakSet.fromEntries([value]) // WeakSet.t
let hasValue = weakSet->WeakSet.has(value) // true
let hasValue2 = weakSet->WeakSet.has(value2) // false
let weakSet = weakSet->WeakSet.add(value2) // mutation, "value2" must be JS object ({..})
let hasValue2 = weakSet->WeakSet.has(value2) // true
let wasDeleted = weakSet->WeakSet.delete(value) // true
let hasValue = weakSet->WeakSet.has(value) // false

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Please make sure to update tests as appropriate.

License

MIT