<!-- @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. --> # isEmptyString > Test if a value is an empty string. <section class="usage"> ## Usage ```javascript var isEmptyString = require( '@stdlib/assert/is-empty-string' ); ``` #### isEmptyString( value ) Tests if a value is an empty `string`. <!-- eslint-disable no-new-wrappers --> ```javascript var bool = isEmptyString( '' ); // returns true bool = isEmptyString( new String( '' ) ); // returns true ``` #### isEmptyString.isPrimitive( value ) Tests if a `value` is an empty primitive `string`. <!-- eslint-disable no-new-wrappers --> ```javascript var bool = isEmptyString.isPrimitive( '' ); // returns true bool = isEmptyString.isPrimitive( new String( '' ) ); // returns false ``` #### isEmptyString.isObject( value ) Tests if a `value` is an empty `String` object. <!-- eslint-disable no-new-wrappers --> ```javascript var bool = isEmptyString.isObject( '' ); // returns false bool = isEmptyString.isObject( new String( '' ) ); // returns true ``` </section> <!-- /.usage --> <section class="examples"> ## Examples <!-- eslint-disable no-new-wrappers, no-restricted-syntax, no-empty-function --> <!-- eslint no-undef: "error" --> ```javascript var isEmptyString = require( '@stdlib/assert/is-empty-string' ); var bool = isEmptyString( '' ); // returns true bool = isEmptyString( new String( '' ) ); // returns true bool = isEmptyString( 'beep' ); // returns false bool = isEmptyString( 0 ); // returns false bool = isEmptyString( null ); // returns false bool = isEmptyString( void 0 ); // returns false bool = isEmptyString( {} ); // returns false bool = isEmptyString( [] ); // returns false bool = isEmptyString( function empty() {} ); // returns false ``` </section> <!-- /.examples --> <section class="links"> </section> <!-- /.links -->