OpenJS World

If you haven’t written tests before, the subject can seem overwhelming. You might have questions like:
- “What’s a unit test?”
- “What’s an assertion?”
- “What’s a test fixture?”
…and that’s just the terminology!

A maintainer of Mocha since 2014, Chris will tenderly guide you through basic testing concepts using the JavaScript testing framework, Mocha. Chris will offer non-overwhelming, real-world examples of Mocha usage and how you can apply this to your own codebase. If you “don’t know what you don’t know” about testing JavaScript, this tutorial will clarify what you don’t know. In the nicest way possible, of course.

It's easy to get started with AMP! Join us to create your first interactive AMP webpage. 

This event is a compressed workshop version of our beginning AMP course (plus a bit of the second course). After a short introduction to AMP, participants create their first AMP pages, complete with responsive images, a YouTube embed, social sharing buttons, an image carousel, and an interactive menu. People code on glitch.com so that they can share their projects with the group, and so that the moderator can help everyone debug.

We'll use Glitch so that everyone can share their creation with the group!

Intern is a testing framework that provides a comprehensive set of tools for testing JavaScript and TypeScript applications, both in Node and in browsers. This workshop will introduce participants to Intern, showing them how to add Intern to a project and use it for both unit and functional testing. Participants should be familiar with JavaScript and Node, but don't need to have any significant testing experience.

At the 2019 Node+JS Interactive in Montreal, James presented a talk discussing the various ways people completely abuse Promises in Node.js. The reaction to that talk was powerful and we received several requests to expand on the topic and to help developers learn to do the right thing with regards to Promises. In this workshop, Matteo and James will do exactly that. Through a series of hands on exercises and puzzles, developers will learn the ins and outs of developing with Promises in Node.js, learning everything they should do, and most importantly what they shouldn't do, in order to maximum the effectiveness of their code and avoid common performance pitfalls.

Modern Dojo is a Progressive TypeScript Framework for Modern Web Apps. In this workshop we’ll get started with the fundamentals of Dojo, and then build an optimized, configurable custom element that can easily get used within any web app.