Today, This Dot Labs is proud to announce the release of a collection of free training video resources for developers.
The first batch of this growing library includes five courses on contemporary web development subjects, all taught by working software engineers.
Topics include:
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After such amazing feedback from our inaugural JavaScript Marathon in April, we have a very special announcement... Starting this month on June 24th, 2020, This Dot will be hosting monthly JavaScript Marathon trainings! These free, online courses will be on Angular, React, Vue, RxJS, and Web Performance. Come learn about some of the leading web development technologies, and concepts! Stay for one training, or stick around for the whole day! No two sessions will be the same! --- Featuring Kent C. Dodds @ 11:00am - 12:00pm EDT React Suspense is coming and it's going to be awesome. It's currently in alpha and you can play around with it. In this tutorial we'll focus on the fundamentals of how React Suspense works (in its experimental form) and how that can help improve the user experience. --- Featuring Brian Lagunas and Jason Beres @ 12:30pm - 1:30pm EDT Angular schematics drive the productivity features of the Angular CLI. With the added benefits of tools, such as Ignite UI from Infragistics, you can take the CLI to the next step with built in component and app templates, and customized themes, and more to kickstart the app experience you need. In the webinar, Brian Lagunas and Jason Beres from Infragistics product teams will walk you through how to use the CLI and how you can create your own customizations to bring hyper-productivity to your teams. --- Featuring Jake Dohm @ 2:00pm - 3:00pm EDT Come join us as we walk through the new Composition API that will be released as part of Vue 3. The Composition API is a way to abstract functionality in your application, using some new internal APIs that Vue is exposing. Inspired by React Hooks, it makes it much easier to share logic, data, and methods across components in your app. --- Featuring Justin Ribeiro @ 3:30pm - 4:30pm EDT With the latest release of Lighthouse, we have new metrics and tools at our disposal to make our web performance testing and tracing even better than before. In this training, Justin dives into what changed, how this affects your users, and why you should care about these latest advancements. --- Featuring Chris Whited @ 5:00pm - 6:00pm EDT We are going to learn how to create a new API using the NestJS NodeJS framework, and then use this API to connect to a database and build a REST API for creating, updating, and tracking issues. We will learn why NestJs is becoming one of the most popular NodeJs frameworks. --- Tune in next month for another full day of JavaScript Marathon! Need private trainings for your company? If you would like to learn more about how you can leverage This Dot’s expertise to upskill your team, and reinvigorate your developers with new knowledge about the web’s leading development technologies, visit the trainings page....
Jun 8, 2020
4 mins
Over the past few weeks, many teams have transitioned their developers to working from home, and leaders are looking for innovative ways to support and continue team growth despite new operational challenges. We have put a lot of energy into thinking about how we can better serve our clients in the present working climate. Since 2016, our clients have leveraged This Dot’s onsite trainings to upskill their developers, establish foundations for new projects, and promote engagement within their teams. Today, we are proud to unveil a brand new catalog of remote JavaScript trainings for corporate teams. Topics include a variety of web development technologies and concepts relevant to modern JavaScript engineering and range from introductory to advanced. While custom trainings are available, our current catalogue includes: ReactJS Trainings ReactJS 101 Advanced React Architecture and Patterns React Testing React Hooks: Migration Strategies Web Components Training Web Components 101 Web Performance Training Web Performance 101 GraphQL Trainings GraphQL 101 GraphQL 201 GraphQL 301 VueJS Trainings Vue 101 Vue 201 Testing in Vue Angular Trainings Angular 101 Angular Accessibility 101 Angular Accessibility 201 Advanced Angular Architecture and Patterns Testing in Angular NgRx Trainings NgRx 101 NgRx 201 RxJS Training RxJS 101 A11Y/Accessibility Training Accessibility 101 Bazel Training Bazel 101 To celebrate our launch, we are offering any remote trainings booked during April at 20% off! These trainings can be purchased and used anytime within the year. If you are interested in learning more about how to leverage the talent and expertise of the This Dot Labs’ team and mentors, please reach out to us at hi@thisdot.co....
Mar 27, 2020
2 mins
Join us September 23rd, 2020 for our next JavaScript Marathon! JavaScript Marathon is a full day of free, online courses on Angular, React, Vue, RxJS, Web Performance, and more. Come learn about some of the leading web development technologies, and concepts! Stay for one training, or stick around for the whole day! No two sessions will be the same! --- React Native in 60 Minutes - Introduction to Creating Your First Hybrid Native Application *Featuring Rob Ocel @ 11:00am - 12:00pm EDT* So, you know React, and you want to build a mobile application - how do you get started? In this training, we'll discuss the architecture of React Native and how it differs from competing approaches such as Progressive Web Applications, Ionic Capacitor, and Apache Cordova. Then, we'll make a basic application from scratch that uses data from remote APIs and device sensors, and we'll show how to test and debug the application on your device and in simulators. --- Using Angular Libraries in an Nx Monorepo *Featuring Patricio Vargas @ 12:30pm - 1:30pm EDT* Learn how to use Angular libraries and share code between multiple enterprise applications in your current or your future monorepo project using Nx by the Nrwl team. --- JavaScript Animations with GreenSock *Featuring Christina Gorton @ 2:00pm - 3:00pm EDT* Have you ever been to a website and wondered "Whoa, how did they do that?" In this session you will learn how to get started creating fun, interesting, and complex animations that delight users with the GreenSock animation library. --- Type-Safe Databases with Prisma *Featuring Ryan Chenkie @ 3:30pm - 4:30pm EDT* TypeScript is seeing huge adoption in all kinds of settings, from enterprises to open source projects to indie side projects. The promise of type safety via TypeScript is compelling: it allows you to catch a whole class of bugs before you even deploy your code. While there's a lot of focus on making your front-end and backend code type-safe, not as much focus is put on applying the same to your database access. That's where Prisma comes in. Prisma is a database toolkit that allows you to build type-safe databases with ease. It gives you a fully typed database client which means you get type hints, autocompletion, and you are prevented from accessing your database in an invalid way. In this session, we'll build a TypeScript node API that uses Prisma for database access. We'll see how Prisma can be used to give you confidence in how you access your data and how you can be more productive by using features such as the Prisma Schema Language, migrations, and more. --- Javascript-free Websites with .NET Blazor WebAssembly *Featuring Heather Downing @ 5:00pm - 6:00pm EDT* Curious about the development experience of building front-end with C#? Blazor WebAssembly makes it possible to replace all of your Javascript completely - even in the front end! Join us as we build a secure SPA in .NET and discover the tricks of debugging and the trade-offs of the server-side version of Blazor....
Aug 17, 2020
3 mins
If you’re a developer, you’ve probably heard of Cursor by now and have either tried it out or are just curious to learn more about it. Cursor is a fork of VSCode with a ton of powerful AI/LLM-powered features added on. For around $20/month, I think it’s the best value in the AI coding space. Tech giants like Shopify and smaller companies like This Dot Labs have purchased Cursor subscriptions for their developers with the goal of increased productivity. I have been using Cursor heavily for a few months now and am excited to share how it’s impacted me personally. In this post, we will cover some of the basic features, use cases, and I’ll share some tips and tricks I’ve learned along the way. If you love coding and building like me, I hope this post will help you unleash some of the superpowers Cursor’s AI coding features make possible. Let’s jump right in! Cursor 101 The core tools of the Cursor tool belt are Autocomplete, Ask, and Agent. Feature: Autocomplete The first thing that got me hooked was Autocomplete. It just worked so much better than the tools I had used previously, like GitHub Copilot. It was quicker and smarter, and I could immediately notice the amount of keystrokes that it was saving me. This feature is great because it doesn’t really require any work or skilled prompting from the user. There are a couple of tricks for getting a little bit more out of it that I will share later, but for now, just enjoy the ride! Feature: Ask If you’ve interacted with AI/LLMs before, like ChatGPT - this is what the Ask feature is. It’s just a chat feature you can easily provide context to from your code base and choose which Model to chat with. This feature is best suited for just asking more general questions that you might have queried Google or Stack Overflow for in the past. It’s also good for planning how to implement a feature you’re working on. After chatting or planning, you can switch directly to Agent mode to pick up and take action on something you were cooking up in Ask mode. Here’s an example of planning a simple tic-tac-toe game implementation using the Ask feature: Feature: Agent Agent mode lets the AI model take the wheel and write code, make edits, or take other similar actions on your code base. The goal is that you can write prompts and give instructions, and the Agent can generate the code and build features or even entire applications for you. With great power comes great responsibility. Agents are a feature where the more you put into them, the more you get out. The more skilled you become in using them by providing better prompts and including the right context, you will continue to get better results. The AI doesn’t always get it right, but the fact that the models and the users are both getting better is exciting. Throughout this post, I will share the best use cases, tips, and tricks I have found using Cursor Agent. Here’s an example using the Agent to execute the implementation details of the tic-tac-toe game we planned using Ask: Core Concept: Context After understanding the features and the basics of prompting, context is the most important thing for getting the best results out of Cursor. In Cursor and in general, whenever you’re prompting a chat or an agent, you want to make sure that it has all the relevant information that it needs to provide an answer or result. Cursor, by default, always has some context of your code. It indexes your code base and usually keeps the open buffer in the context window at the very least. At the top left of the Ask or Agent panel, there is an @ button, and next to that are badges for all the current items that have been explicitly added to the context for the current session. The @ button has a dropdown that allows you to add files, folders, web links, past chats, git commits, and more to the context. Before you prompt, always make sure you add the relevant content it needs as context so that it has everything it needs to provide the best response. Settings and Rules Cursor has its own settings page, which you can access through Cursor → Settings → Cursor Settings. This is where you log in to your account, manage various features, and enable or disable models. In the General section, there is an option for Privacy Mode. This is one setting in particular I recommend enabling. Aside from that, just explore around and see what’s available. Models The model you use is just as important as your prompt and the context that you provide. Models are the underlying AI/LLM used to process your input. The most well-known is GPT-4o, the default model for ChatGPT. There are a lot of different models available, and Cursor provides access to most of them out of the box. Model pricing A lot of the most common models, like GPT-4o or Sonnet 3.5/3.7, are included in your Cursor subscription. Some models like o1 and Sonnet 3.7 MAX are considered premium models, and you will be billed for usage for these. Be sure to pay attention to which models you are using so you don’t get any surprise bills. Choosing a Model Some models are better suited for certain tasks than others. You can configure which models are enabled in the Cursor Settings. If you are planning out a big feature or trying to solve some complex logic issue, you may want to use one of the thinking models, like o1, o3-mini, or Deep Seek R1. For most coding tasks and as a good default, I recommend using Sonnet 3.5 or 3.7. The great thing about Cursor is that you have the options available right in your editor. The most important piece of advice that I can give in this post is to keep trying things out and experimenting. Try out different models for different tasks, get a feel for it, and find what works for you. Use cases Agents and LLM models are still far from perfect. That being said, there are already a lot of tasks they are very good at. The more effective you are with these tools, the more you will be able to get done in a shorter amount of time. Generating test cases Have some code that you would like unit tested? Cursor is very good at generating test cases and assertions for your code. The fewer barriers there are to testing a piece of code, the better the result you will get. So, try your best to write code that is easily testable! If testing the code requires some mocks or other pieces to work, do your best to provide it the context and instructions it needs before writing the tests. Always review the test cases! There could be errors or test cases that don’t make sense. Most of the time, it will get you pretty close to where you want to be. Here’s an example of using the Agent mode to install packages for testing and generate unit tests for the tic-tac-toe game logic: Generating documentation This is another thing we know AI models are good at - summarizing large chunks of information. Make sure it has the context of whatever you want to document. This one, in particular, is really great because historically, keeping documentation up to date is a rare and challenging practice. Here’s an example of using the Agent mode to generate documentation for the tic-tac-toe game: Code review There are a lot of up-and-coming tools outside of Cursor that can handle this. For example, GitHub now has Copilot integrated in pull requests for code reviews. It’s never a bad idea to have whatever change set you’re looking to commit reviewed and inspected before pushing it up to the remote, though. You can provide your unstaged changes or even specific commits as context to a Cursor Ask or Agent prompt. Getting up to speed in a new code base Being able to query a codebase with the power of LLM’s is truly fantastic. It can be a great help to get up to speed in a large new codebase quickly. Some example prompts: > Please provide an overview of this project and how to get started developing with it > I need to make some changes to the way that notifications are grouped in the UI, please provide a detailed analysis and pseudo code outlining how the grouping algorithm works If you have a question about the code base, ask Cursor! Refactoring Refactoring code in a code base is a much quicker process in Cursor. You can execute refactors depending on their scope in a couple of distinct ways. For refactors that don’t span a lot of files or are less complex, you can probably get away with just using the autocomplete. For example, if you make a change to something in a file and there are several instances of the same pattern following, the autocomplete will quickly pick up on this and help you tab through the changes. If you switch to another file, this information will still be in context and can be continued most of the time. For larger refactors spanning several files, using the Agent feature will most likely be the quickest way to get it done. Add all the files you plan to make changes to the Agent tab’s context window. Provide specific instructions and/or a basic example of how to execute the refactor. Let the Agent work, if it doesn’t get it exactly right initially, you can always give it corrections in a follow-up prompt. Generating new code/features This is the big promise of AI agents and the one with the most room for mixed results. My main recommendation here is to keep experimenting. Keep learning to prompt more effectively, compare results from different models, and pay attention to the results you get from each use case. I personally get the best results building new features in small, focused chunks of work. It can also be helpful to have a dialog with the Ask feature first to plan out the feature's details that the Agent can follow up on and implement. If there are existing patterns in your codebase for accomplishing certain things, provide this information in your prompts and make sure to add the relevant code to the context. For example, if you’re adding a new form to the web page and you have other similar forms that handle validation and making back-end calls in the same way, Cursor can base the code for the new feature on this. Example prompt: Generate a form for creating a new post, follow similar patterns from the create user profile form, and look to the post schema for the fields that should be included. Remember that you can always follow up with additional prompts if you aren’t quite happy with the results of the first.. If the results are close but need to be adjusted in some way, let the agent know in the next prompt. You may find that for some things, it just doesn’t do well yet. Mentally note these things and try to get to a place where you can intuit when to reach for the Agent feature or just write some of the code the old-fashioned way. Tips and tricks The more you use Cursor, the more you will find little ways to get more out of it. Here are some of the tips and patterns that I find particularly useful in my day-to-day work. Generating UI with screenshots You can attach images to your prompts that the models can understand using computer vision. To the left of the send button, there is a little button to attach an image from your computer. This functionality is incredibly useful for generating UI code, whether you are giving it an example UI as a reference for generating new UI in your application or providing a screenshot of existing UI in your application and prompting it to change details in reference to the image. Cursor Rules Cursor Rules allow you to add additional information that the LLM models might need to provide the best possible experience in your codebase. You can create global rules as well as project-specific ones. An example use case is if your project has some updated dependency with newer APIs than the one on which the LLM has been trained. I ran into this when adding Tailwind v4 to a project; the models are always generating code based on Tailwind v3 or earlier. Here’s how we can add a rules file to handle this use case: ` If you want to see some more examples, check out the awesome-cursorrules repository. Summary Learn to use Cursor and similar tools to enhance your development process. It may not give you actual superpowers, but it may feel like it. All the features and tools we’ve covered in this post come together to provide an amazing experience for developing all types of software and applications....
Apr 18, 2025
11 mins
