typeof type guards Let’s go back and write the code for the version of padLeft that uses union types. We could write

Symbol.match A regular expression method that matches the regular expression against a string. Called by the String.prototype

Decorator Composition Multiple decorators can be applied to a declaration, as in the following examples:

Add a CopyFiles target to the build Finally, we need to make sure that the Angular files are copied as part of the build. To do this, edit the

Using Modules Just like namespaces, modules can contain both code and declarations. The main difference is that modules declare their

Function declarations Destructuring also works in function declarations. For simple cases this is straightforward:

NuGet Right-Click -> Manage NuGet Packages Search for Microsoft.TypeScript.MSBuild Hit Install

Grunt

Duo

Accessor Decorators An Accessor Decorator is declared just before an accessor declaration. The accessor decorator is applied to the