Skip to main content
Module

x/ramda/source/insertAll.js

:ram: Practical functional Javascript
Latest
File
import _curry3 from './internal/_curry3.js';

/** * Inserts the sub-list into the list, at the specified `index`. _Note that this is not * destructive_: it returns a copy of the list with the changes. * <small>No lists have been harmed in the application of this function.</small> * * @func * @memberOf R * @since v0.9.0 * @category List * @sig Number -> [a] -> [a] -> [a] * @param {Number} index The position to insert the sub-list * @param {Array} elts The sub-list to insert into the Array * @param {Array} list The list to insert the sub-list into * @return {Array} A new Array with `elts` inserted starting at `index`. * @example * * R.insertAll(2, ['x','y','z'], [1,2,3,4]); //=> [1,2,'x','y','z',3,4] */var insertAll = _curry3(function insertAll(idx, elts, list) { idx = idx < list.length && idx >= 0 ? idx : list.length; return [].concat( Array.prototype.slice.call(list, 0, idx), elts, Array.prototype.slice.call(list, idx) );});export default insertAll;