Function List

Create a new immutable List containing the values of the provided collection-like.

Note: List is a factory function and not a class, and does not use the new keyword during construction.

const { List, Set } = require('immutable')

const emptyList = List()
// List []

const plainArray = [ 1, 2, 3, 4 ]
const listFromPlainArray = List(plainArray)
// List [ 1, 2, 3, 4 ]

const plainSet = Set([ 1, 2, 3, 4 ])
const listFromPlainSet = List(plainSet)
// List [ 1, 2, 3, 4 ]

const arrayIterator = plainArray[Symbol.iterator]()
const listFromCollectionArray = List(arrayIterator)
// List [ 1, 2, 3, 4 ]

listFromPlainArray.equals(listFromCollectionArray) // true
listFromPlainSet.equals(listFromCollectionArray) // true
listFromPlainSet.equals(listFromPlainArray) // true
Copy

Create a new immutable List containing the values of the provided collection-like.

Note: List is a factory function and not a class, and does not use the new keyword during construction.

const { List, Set } = require('immutable')

const emptyList = List()
// List []

const plainArray = [ 1, 2, 3, 4 ]
const listFromPlainArray = List(plainArray)
// List [ 1, 2, 3, 4 ]

const plainSet = Set([ 1, 2, 3, 4 ])
const listFromPlainSet = List(plainSet)
// List [ 1, 2, 3, 4 ]

const arrayIterator = plainArray[Symbol.iterator]()
const listFromCollectionArray = List(arrayIterator)
// List [ 1, 2, 3, 4 ]

listFromPlainArray.equals(listFromCollectionArray) // true
listFromPlainSet.equals(listFromCollectionArray) // true
listFromPlainSet.equals(listFromPlainArray) // true
Copy

Create a new immutable List containing the values of the provided collection-like.

Note: List is a factory function and not a class, and does not use the new keyword during construction.

const { List, Set } = require('immutable')

const emptyList = List()
// List []

const plainArray = [ 1, 2, 3, 4 ]
const listFromPlainArray = List(plainArray)
// List [ 1, 2, 3, 4 ]

const plainSet = Set([ 1, 2, 3, 4 ])
const listFromPlainSet = List(plainSet)
// List [ 1, 2, 3, 4 ]

const arrayIterator = plainArray[Symbol.iterator]()
const listFromCollectionArray = List(arrayIterator)
// List [ 1, 2, 3, 4 ]

listFromPlainArray.equals(listFromCollectionArray) // true
listFromPlainSet.equals(listFromCollectionArray) // true
listFromPlainSet.equals(listFromPlainArray) // true
Copy