/** * @license Apache-2.0 * * Copyright (c) 2018 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ 'use strict'; /** * Remove and return the first element of a collection. * * @module @stdlib/utils/shift * * @example * var shift = require( '@stdlib/utils/shift' ); * var Float64Array = require( '@stdlib/array/float64' ); * * var arr = [ 1.0, 2.0, 3.0, 4.0, 5.0 ]; * * var out = shift( arr ); * // returns [ [ 2.0, 3.0, 4.0, 5.0 ], 1.0 ] * * arr = new Float64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0 ] ); * // returns [ 1.0, 2.0, 3.0, 4.0, 5.0 ] * * out = shift( arr ); * // returns [ [ 2.0, 3.0, 4.0, 5.0 ], 1.0 ] */ // MODULES // var shift = require( './shift.js' ); // EXPORTS // module.exports = shift;