TypeScript is gaining popularity as a type-safe alternative to JavaScript. Here's how to incrementally transform your JavaScript codebase into strongly typed TypeScript.

JavaScript variables hold a wide variety of information and can be used with virtually any data type. Here's how to use variables to store numbers, text strings, objects, and more.

Enabling Javascript can help you view web pages properly — without it, many websites and programs may not load. It should only take a minute or so to enable Javascript in Safari on your Mac .

To enable JavaScript, go into the Settings app on your iPhone, click "Safari," then "Advanced," and swipe the JavaScript button to the right so it appears green. Here's a full breakdown with pictures.