Functions in TypeScript aren't handled the way you'd expect ... a colon, the parameter list, a fat arrow (=>), and the function's return type. For example, to declare a variable called FirstNameTyped ...

Like TypeScript, CoffeeScript is a superset ... Listing 6 shows you how to declare a single function argument without the parenthesis and arrow. The ampersand character in the second example ...

Note that here we use the arrow notation to indicate what ... at a time—migrate one module at a time, then one function at a time. Because TypeScript can coexist with regular JavaScript, you ...

As a final sweetener, TypeScript polyfills many ECMAScript changes (like arrow functions, async, and classes) before they're widely available in browsers. We've been persuaded ourselves, as more and ...