moy-fp/src/List/insertAll.js

A functional programming library.

import curry from '../Function/curry'

/**
 * Number -> [a] -> [a] -> [a]
 */
const insertAll = curry(
  (n, items, array) => {
    const list = [...array]
    list.splice(n, 0, ...items)
    return list
  }
)

export default insertAll