String Another fundamental part of creating programs in JavaScript for webpages and servers alike is working with textual data. As in other

global-modifying-module.d.ts

gulp

Block-scoped variable capturing When we first touched on the idea of variable capturing with var declaration, we briefly went into

Merging Namespaces with Classes This gives the user a way of describing inner classes.

Find and Install Declaration Files For JavaScript library users, the

Embedding Expressions JSX allows you to embed expressions between tags by surrounding the expressions with curly braces ({ }).

Intrinsic elements Intrinsic elements are looked up on the special interface JSX.IntrinsicElements. By default, if this interface

Write some code Let’s write our first TypeScript file using Knockout. First, create a new file in your src directory named hello

User-Defined Type Guards Notice that we had to use type assertions several times. It would be much better if once we performed the check, we