ramda-extension/lib/uniqTakeWhile.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 first n elements of a given list,
 * passing each value to the supplied predicate function,
 * and terminating when the predicate function returns false.
 * Excludes the element that caused the predicate function to fail.
 * The predicate function is passed one argument: (value).
 *
 * Acts as a transducer if a transformer is given in list position.
 *
 * @func
 * @category List
 *
 * @param {function} fn The function called per iteration.
 * @param {array} xs The collection to iterate over.
 *
 * @return {array} New array
 *
 * @example
 *
 *        R_uniqTakeWhile(x => x !== 4, [1, 2, 2, 1, 3, 4, 3, 2, 1]); // [1, 2, 3]
 *
 *
 * @sig (a -> Boolean) -> [a] -> [a]
 */
var uniqTakeWhile = (0, _composeC.default)(_ramda.uniq, _ramda.takeWhile);
var _default = uniqTakeWhile;
exports.default = _default;