ramda-extension/lib/uniqPrepend.js

Helpful functions built on top of the mighty Ramda

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

var _ramda = require("ramda");

var _composeC = _interopRequireDefault(require("./composeC"));

/**
 * Returns a new list containing the unique contents of the given list, starting by the given element.
 *
 * @func
 * @category List
 *
 * @param {any} el The element to add to the tart of the new list.
 * @param Array list The list of elements to add a new item to.
 *
 * @return Array A new list with the given element at the front following by the elements of the old list.
 *
 *
 * @example
 *
 *        R_.uniqPrepend("b", ["a", "b"]) // ["b", "a"]
 *        R_.uniqPrepend("d", ["a", "b"]) // ["d","a", "b"]
 *
 * @sig a -> [a] -> [a]
 */
var uniqPrepend = (0, _composeC.default)(_ramda.uniq, _ramda.prepend);
var _default = uniqPrepend;
exports.default = _default;