struct-class

🚧 Struct class from Ruby to JavaScript

Struct acts like a normal custom user-created class, but provides some nice default functionality and shortcuts when you don't need a full-fledged class.

Install

NPM

$ npm install struct-class --save

Yarn

$ yarn add struct-class

Usage

import Struct from 'struct-class'
 
class Account extends Struct.new('owner', 'balance') {}
 
const account = new Account('Helton', 12345.67)
 
console.log(account) 
// => #<struct Struct::Account owner=Helton, balance=12345.67>

API

All the methods below (but the Struct.new, which is static) are instance methods or attributes/properties.

Struct.new (...parameters)

Return Type: class

Returns a class with a default constructor using all the parameters provided.

dig (...keys)

Return Type: any

Extracts the nested value specified by the sequence of key objects by calling dig at each step, returning undefined if any intermediate step is undefined.

each (fn)

Return Type: void

Iterates over the struct members, returning their property names.

eachPair (fn)

Return Type: void

Iterates over the struct members, returning their property names and values

inspect ()

Return Type: string

Describes the contents of the struct in a string.

length

Attribute Return Type: number

Returns the number of struct members.

members

Attribute Return Type: Array[string]

Returns the struct members as an array of string.

select (fn)

Return Type: void

Iterates over the struct members, returning their property names.

size

Attribute Return Type: number

Returns the number of struct members.

toString ()

Return Type: string

Describes the contents of the struct in a string.

toArray ()

Return Type: Array[any]

Returns the values for this struct as an Array.

toMap ()

Return Type: Map[string => any]

Returns the values for this struct as a Map.

values

Attribute Return Type: Array[any]

Returns the values for this struct as an Array.

valuesAt (....selectors)

Return Type: Array[any]

Returns the struct member values for each selector as an Array. A selector should be a number or a string representing the property name.

License

MIT © Helton Carlos de Souza