If you write JavaScript, you have probably used higher-order functions and not even noticed. If you have ever replaced a for loop with an array method, you’ve used higher-order functions.

Of all the hats JavaScript can wear, its form-processing features are among the most sought and used. Learn how to use JavaScript for form processing, validation, and more.

The Practical Client Integrating JavaScript with TypeScript (and Backbone and Knockout) Peter looks at how to call a JavaScript function from your TypeScript code and do it in a type-safe way. Along ...