text: /**
   * @fileoverview Check whether the given variable is a function or not.
   */
  
  'use strict';
  
  /**
   * Check whether the given variable is a function or not.
   * If the given variable is a function, return true.
   * @param {*} obj - Target for checking
   * @returns {boolean} Is function?
   * @memberof module:type
   */
  function isFunction(obj) {
    return obj instanceof Function;
  }
  
  module.exports = isFunction;
  