CFP - Docs - mFillWith

mFillWith

(value: any) => (collection: EntryCollection) => collection

Fill a collection with value

Consider fillWith instead.
This is for the uncommon case where mutating collection is required.

Try It

const mZeroOut = mFillWith(0)
const arr = [1, 2, 3]
const mutatedArr = mZeroOut(arr)
console.log(mutatedArr === arr) // is true
console.log(arr) // is [0, 0, 0]
const mZeroOut = mFillWith(0)
const arr = [1, 2, 3]
const mutatedArr = mZeroOut(arr)
console.log(mutatedArr === arr) // is true
console.log(arr) // is [0, 0, 0]

Try It

const mZeroOut = mFillWith(0)
const arr = [1, 2, 3]
const mutatedArr = mZeroOut(arr)
console.log(mutatedArr === arr) // is true
console.log(arr) // is [0, 0, 0]
const mZeroOut = mFillWith(0)
const arr = [1, 2, 3]
const mutatedArr = mZeroOut(arr)
console.log(mutatedArr === arr) // is true
console.log(arr) // is [0, 0, 0]

Sometimes we want to initialize a collection to a value. Below, we have a baseball display showing the number of strikes, balls, and outs the batting team has. Let's reset it back to zero at the end of the frame.

Try It

const display = {
  strikes: 2,
  balls: 1,
  outs: 2,
}

const endFrame = mFillWith(0)
endFrame(display)
console.log(display)
// is {
//   strikes: 0
//   balls: 0
//   outs: 0
// }
const display = {
  strikes: 2,
  balls: 1,
  outs: 2,
}

const endFrame = mFillWith(0)
endFrame(display)
console.log(display)
// is {
//   strikes: 0
//   balls: 0
//   outs: 0
// }

Try It

const display = {
  strikes: 2,
  balls: 1,
  outs: 2,
}

const endFrame = mFillWith(0)
endFrame(display)
console.log(display)
// is {
//   strikes: 0
//   balls: 0
//   outs: 0
// }
const display = {
  strikes: 2,
  balls: 1,
  outs: 2,
}

const endFrame = mFillWith(0)
endFrame(display)
console.log(display)
// is {
//   strikes: 0
//   balls: 0
//   outs: 0
// }