CFP - Docs - joinValues

joinValues

(separator: string) => (collection: Collection) => string

Joins collection values into a string

Try It

const toCommaList = joinValues(', ')

toCommaList(['A', 'B']) // is A, B
toCommaList({ a: 'A', b: 'B' }) // is A, B
const toCommaList = joinValues(', ')

toCommaList(['A', 'B']) // is A, B
toCommaList({ a: 'A', b: 'B' }) // is A, B

Try It

const toCommaList = joinValues(', ')

toCommaList(['A', 'B']) // is A, B
toCommaList({ a: 'A', b: 'B' }) // is A, B
const toCommaList = joinValues(', ')

toCommaList(['A', 'B']) // is A, B
toCommaList({ a: 'A', b: 'B' }) // is A, B

This is a generic version of join. We can use it to join strings of any collection. Below, Sam has a group chat going with Jen and Mike. Let's join their names to have an identifier for Sam's group chat selection.

Try It

const groupChat = {
  'jen@example.com': 'Jen',
  'mike@example.com': 'Mike',
}

const toCommaList = joinValues(', ')
const groupDisplay = toCommaList(groupChat)
console.log(groupDisplay)
// prints Jen, Mike
type GroupChat = Record<string, string>
const groupChat: GroupChat = {
  'jen@example.com': 'Jen',
  'mike@example.com': 'Mike',
}

const toCommaList = joinValues(', ')<GroupChat>
const groupDisplay = toCommaList(groupChat)
console.log(groupDisplay)
// prints Jen, Mike

Try It

const groupChat = {
  'jen@example.com': 'Jen',
  'mike@example.com': 'Mike',
}

const toCommaList = joinValues(', ')
const groupDisplay = toCommaList(groupChat)
console.log(groupDisplay)
// prints Jen, Mike
type GroupChat = Record<string, string>
const groupChat: GroupChat = {
  'jen@example.com': 'Jen',
  'mike@example.com': 'Mike',
}

const toCommaList = joinValues(', ')<GroupChat>
const groupDisplay = toCommaList(groupChat)
console.log(groupDisplay)
// prints Jen, Mike