RAR: typeof

/**
 * Simulate "typeof" statement
 *
 * @author Roger Lima ([email protected])
 * @date 16/fev/2014
 * @update 22/feb/2016
 *
 * @param {Mixed} data
 * @return {string|undefined}
 */
/* jshint laxbreak: true */

function type_of( data ) {
    'use strict';

    return ( ( data instanceof Object && !( data instanceof Function ) ) || data === null )
        ? 'Object'
        : ( data !== undefined && data.constructor && data.constructor.name ) || undefined;
}