CFP - Docs - append

append

(end: string) => (base: string) => string

Append one string to another

Try It

const appendCD = append('cd')

appendCD('ab') // is 'abcd'
const appendCD = append('cd')

appendCD('ab') // is 'abcd'

Try It

const appendCD = append('cd')

appendCD('ab') // is 'abcd'
const appendCD = append('cd')

appendCD('ab') // is 'abcd'

Sometimes we want to append a string. Below, Chris has a to-do list for today. Let's append a check or a box to each item.

Try It

const itemsDone = [
  'email professor',
  'wish mom a happy birthday',
  'geology homework',
]
const itemsToDo = ['get cat food', 'apply for internship']

const format = (items, marker) => {
  const markItem = append(' ' + marker)
  return items.map(markItem).join('\n')
}
const list = `
Items done
----------
${format(itemsDone, '🗹')}

Items to do
-----------
${format(itemsToDo, '☐')}
`

console.log(list)
// prints
//
// Items done
// ----------
// email professor 🗹
// wish mom a happy birthday 🗹
// geology homework 🗹
//
// Items to do
// -----------
// get cat food ☐
// apply for internship ☐
const itemsDone = [
  'email professor',
  'wish mom a happy birthday',
  'geology homework',
]
const itemsToDo = ['get cat food', 'apply for internship']

const format = (items: string[], marker: string) => {
  const markItem = append(' ' + marker)
  return items.map(markItem).join('\n')
}
const list = `
Items done
----------
${format(itemsDone, '🗹')}

Items to do
-----------
${format(itemsToDo, '☐')}
`

console.log(list)
// prints
//
// Items done
// ----------
// email professor 🗹
// wish mom a happy birthday 🗹
// geology homework 🗹
//
// Items to do
// -----------
// get cat food ☐
// apply for internship ☐

Try It

const itemsDone = [
  'email professor',
  'wish mom a happy birthday',
  'geology homework',
]
const itemsToDo = [
  'get cat food',
  'apply for internship',
]

const format = (items, marker) => {
  const markItem = append(' ' + marker)
  return items.map(markItem).join('\n')
}
const list = `
Items done
----------
${format(itemsDone, '🗹')}

Items to do
-----------
${format(itemsToDo, '☐')}
`

console.log(list)
// prints
//
// Items done
// ----------
// email professor 🗹
// wish mom a happy birthday 🗹
// geology homework 🗹
//
// Items to do
// -----------
// get cat food ☐
// apply for internship ☐
const itemsDone = [
  'email professor',
  'wish mom a happy birthday',
  'geology homework',
]
const itemsToDo = [
  'get cat food',
  'apply for internship',
]

const format = (
  items: string[],
  marker: string
) => {
  const markItem = append(' ' + marker)
  return items.map(markItem).join('\n')
}
const list = `
Items done
----------
${format(itemsDone, '🗹')}

Items to do
-----------
${format(itemsToDo, '☐')}
`

console.log(list)
// prints
//
// Items done
// ----------
// email professor 🗹
// wish mom a happy birthday 🗹
// geology homework 🗹
//
// Items to do
// -----------
// get cat food ☐
// apply for internship ☐