localstorage-01.js

/**
 * Determines whether the browser supports localStorage or not.
 *
 * This method is required due to iOS Safari in Private Browsing mode incorrectly says it supports localStorage, when it in fact does not.
 *
 * @kind function
 * @function LocalStorage#supportsLocalStorage
 *
 * @returns {boolean} Returns true if setting and removing a localStorage item is successful, or false if it's not.
 */
supportsLocalStorage: function () {
    try {
        localStorage.setItem('_', '_');
        localStorage.removeItem('_');

        return true;
    } catch (e) {
        return false;
    }
}