resetable

= Resetable
A sweet to define temporary values and clear them off conditionally

== Setup
[source, bash]
----
npm i --save resetable
----

== Usage
[source, javascript]
----
const Resetable = require('resetable')
const name = new Resetable('defaultValue')
----

== What is this?
You all love creating chainable functions, which set global value and once to use that global, you clean it off. Okay wait! Let's check the below example.

=== Without Resetable

[source, javascript]
----
const carStore = {}
let carModel = null
let carType = null

carStore.model = (model) => {
carModel = model
return carStore
}

carStore.type = (type) => {
carType = type
return carStore
}

carStore.search = () => {
const model = carModel
const type = carType
carModel = null
carType = null

// perform search
}

carStore
.model('1990')
.type('stang')
.search()
----

=== With Resetable

[source, javascript]
----
const Resetable = require('resetable')

const carStore = {}
let carModel = new Resetable(null) <1>
let carType = new Resetable(null)

carStore.model = (model) => {
carModel.set(model) <2>
return carStore
}

carStore.type = (type) => {
carType.set(type)
return carStore
}

carStore.search = () => {
const model = carModel.pull() <3>
const type = carType.pull()

// perform search
}

carStore
.model('1990')
.type('stang')
.search()
----

<1> Define the temporary variable as resetable with a default value.
<2> Make use of the set method to set the value.
<3> Calling the pull method will clear the resetable variable back to the original value.