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. Forms are an essential part ...

‘Higher-order functions’ is a fancy term for functions that take other functions as arguments or that return functions. Very powerful! Last week, I casually dropped the term “higher-order function” ...

With its first class functions, JavaScript doesn't really need lambdas, but it has them and they are useful. Find out the mysteries of the lambda in Jem 11. Lambda expressions sound advanced and ...