CFP - Docs - appendAll

appendAll

(appended: array) => (base: array) => array

Append one array to another

Try It

const append34 = appendAll([3, 4])
append34([1, 2]) // is [1, 2, 3, 4]

const append3AndArray4 = appendAll([3, [4]])
append3AndArray4([1, 2]) // is [1, 2, 3, [4]]
const append34 = appendAll([3, 4])
append34([1, 2]) // is [1, 2, 3, 4]

const append3AndArray4 = appendAll([3, [4]])
append3AndArray4([1, 2]) // is [1, 2, 3, [4]]

Try It

const append34 = appendAll([3, 4])
append34([1, 2]) // is [1, 2, 3, 4]

const append3AndArray4 = appendAll([3, [4]])
append3AndArray4([1, 2]) // is [1, 2, 3, [4]]
const append34 = appendAll([3, 4])
append34([1, 2]) // is [1, 2, 3, 4]

const append3AndArray4 = appendAll([3, [4]])
append3AndArray4([1, 2]) // is [1, 2, 3, [4]]

This is useful when we want to concatenate two arrays. Below, we create a list of all students by appending new students to the existing list.

Try It

const newStudents = ['matt', 'jason']
const appendNewStudents = appendAll(newStudents)

const existingStudents = ['amy', 'kim']
const allStudents = appendNewStudents(existingStudents)
console.log(allStudents)
// is ['amy', 'kim', 'matt', 'jason']
const newStudents = ['matt', 'jason']
const appendNewStudents = appendAll(newStudents)

const existingStudents = ['amy', 'kim']
const allStudents = appendNewStudents(existingStudents)
console.log(allStudents)
// is ['amy', 'kim', 'matt', 'jason']

Try It

const newStudents = ['matt', 'jason']
const appendNewStudents = appendAll(newStudents)

const existingStudents = ['amy', 'kim']
const allStudents = appendNewStudents(
  existingStudents
)
console.log(allStudents)
// is ['amy', 'kim', 'matt', 'jason']
const newStudents = ['matt', 'jason']
const appendNewStudents = appendAll(newStudents)

const existingStudents = ['amy', 'kim']
const allStudents = appendNewStudents(
  existingStudents
)
console.log(allStudents)
// is ['amy', 'kim', 'matt', 'jason']