/**
* @module isString
* @description
* Checks whether a string.
* ## Install
* Install all functions of strman
* ```sh
* yarn add strman
* ```
* or just the isString function
* ```sh
* yarn add strman.isstring
* ```
* ## Usage
* ```javascript
* import { isString } from 'strman'
* // OR
* import isString from 'strman.isstring'
* ```
* @param {String} value The String!
* @example
* const title = 'A Javascript string manipulation library.'
* isString(title)
* // => true
* @returns {Boolean} if 'value' isString, return true, else false.
*/
export default value => Object.prototype.toString.call(value) === '[object String]'