CFP - Docs - expandEnd

expandEnd

(length: number, char: Character) => (aString: string) => string

Expand a string to length by appending char

Try It

const expandTo3 = expandEnd(3, '-')

expandTo3('a') // is 'a--'
expandTo3('ab') // is 'ab-'
expandTo3('abc') // is 'abc'
const expandTo3 = expandEnd(3, '-')

expandTo3('a') // is 'a--'
expandTo3('ab') // is 'ab-'
expandTo3('abc') // is 'abc'

Try It

const expandTo3 = expandEnd(3, '-')

expandTo3('a') // is 'a--'
expandTo3('ab') // is 'ab-'
expandTo3('abc') // is 'abc'
const expandTo3 = expandEnd(3, '-')

expandTo3('a') // is 'a--'
expandTo3('ab') // is 'ab-'
expandTo3('abc') // is 'abc'

One case for expandEnd is to format data. Below, we print a brownie recipe while aligning the amounts.

Try It

const brownies = {
  Sugar: '1 1/2 Cups',
  Flour: '3/4 Cup',
  Cocoa: '2/3 Cup',
  'Chocolate Chips': '1/2 Cup',
  Eggs: '2',
}

const appendSpaces = expandEnd(20, ' ')

const formattedRecipe = Object.entries(brownies)
  .map(([ingredient, amount]) => {
    return appendSpaces(ingredient) + amount
  })
  .join('\n')

console.log(formattedRecipe)
// prints
// Sugar               1 1/2 Cups
// Flour               3/4 Cup
// Cocoa               2/3 Cup
// Chocolate Chips     1/2 Cup
// Eggs                2
const brownies = {
  Sugar: '1 1/2 Cups',
  Flour: '3/4 Cup',
  Cocoa: '2/3 Cup',
  'Chocolate Chips': '1/2 Cup',
  Eggs: '2',
}

const appendSpaces = expandEnd(20, ' ')

const formattedRecipe = Object.entries(brownies)
  .map(([ingredient, amount]) => {
    return appendSpaces(ingredient) + amount
  })
  .join('\n')

console.log(formattedRecipe)
// prints
// Sugar               1 1/2 Cups
// Flour               3/4 Cup
// Cocoa               2/3 Cup
// Chocolate Chips     1/2 Cup
// Eggs                2

Try It

const brownies = {
  Sugar: '1 1/2 Cups',
  Flour: '3/4 Cup',
  Cocoa: '2/3 Cup',
  'Chocolate Chips': '1/2 Cup',
  Eggs: '2',
}

const appendSpaces = expandEnd(20, ' ')

const formattedRecipe = Object.entries(brownies)
  .map(([ingredient, amount]) => {
    return appendSpaces(ingredient) + amount
  })
  .join('\n')

console.log(formattedRecipe)
// prints
// Sugar               1 1/2 Cups
// Flour               3/4 Cup
// Cocoa               2/3 Cup
// Chocolate Chips     1/2 Cup
// Eggs                2
const brownies = {
  Sugar: '1 1/2 Cups',
  Flour: '3/4 Cup',
  Cocoa: '2/3 Cup',
  'Chocolate Chips': '1/2 Cup',
  Eggs: '2',
}

const appendSpaces = expandEnd(20, ' ')

const formattedRecipe = Object.entries(brownies)
  .map(([ingredient, amount]) => {
    return appendSpaces(ingredient) + amount
  })
  .join('\n')

console.log(formattedRecipe)
// prints
// Sugar               1 1/2 Cups
// Flour               3/4 Cup
// Cocoa               2/3 Cup
// Chocolate Chips     1/2 Cup
// Eggs                2