... true20 | The Past, Present, and Future of JavaScript Arrow functions JavaScript uses the same construct, the function, for both methods and non-methodfunctions. The problem with the former ... 2005. With the introduction of the iPhone in 2007, it became the foundation of the mobile web. WebKit is now the main engine for Android and the only engine for iOS, and dominates the mobile ... explicitlycreated and are unique and unforgeable:12 | The Past, Present, and Future of JavaScript separate application. It also has its own profile (preferences, cookies, history, etc.) and its windows...