“Unleash the Power of Visual Studio 2019 with These Expert Strategies for Debugging Typescript Like a Pro!”

Debugging TypeScript in Visual Studio 2019: A Perplexing and Bursting Process

What You Need to Know About Debugging in Visual Studio 2019

As a programmer, you already know that debugging is a crucial aspect of the development process. It helps you detect and resolve errors in your code, thereby making it more reliable and robust. Fortunately, Visual Studio 2019, one of the popular Integrated Development Environments (IDEs) for developing TypeScript applications, comes with a comprehensive set of debugging tools. In this article, we’ll guide you through the steps involved in debugging TypeScript code in Visual Studio 2019.

Step 1: Creating a TypeScript Project in Visual Studio 2019

Your first task before commencing any debugging exercise is to create a TypeScript project in Visual Studio 2019. Here are the steps to follow:

  1. Launch Visual Studio 2019 and select the “Create a new project” option
  2. Click on the “Web” category and select “ASP.NET Core Web Application”
  3. Name your project and click “Create”
  4. Choose “Empty” as the project template and “ASP.NET Core 5.0” as the target framework
  5. Next, select “Web Application (Model-View-Controller)” and click “Create”

Step 2: Adding TypeScript Code to the TypeScript Project

Now that you have a TypeScript project in your Visual Studio 2019 environment, you can add some TypeScript code to it. Follow the sequence of steps below:

  1. Right-click on the project in the solution explorer and select “Add” -> “New Item”
  2. Select “TypeScript File” from the list of available templates and name your file
  3. Click “Add” to create the new file
  4. Now add your TypeScript code to the file.
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Your code snippet may look like this:

interface Person {
   name: string;
   age: number;
}

let person: Person = { name: "John Doe", age: 30 };
console.log(person.name);
console.log(person.age);

Step 3: Setting Breakpoints in Your TypeScript Code

Setting breakpoints is one of the most potent debugging tools that Visual Studio 2019 provides. They help pause the execution of your code in specific sections of your code, thereby enabling you to probe the state of your application at those points. Follow the steps below to set breakpoints in your TypeScript code:

  • Open the TypeScript file you want to debug
  • Hover your cursor over the line of code you want to probe
  • Right-click on the line of code and select “Insert Breakpoint” -> “Breakpoint”
  • A red circle appears on the left-hand side of the code line, indicating the breakpoint position.

Step 4: Starting the Debugging Process

You have set your breakpoints; now yikes, time to start debugging your TypeScript code. Here’s what you need to do:

  1. Press the “F5” key on your keyboard or click on “Debug” -> “Start Debugging” from the main menu bar
  2. Visual Studio will trigger your application and initiate the debugging process
  3. When it hits the breakpoint, the execution of the program pauses, and you can investigate the state of your application at that point.
  4. You can use the debugger to step through your code, examine expressions and variables and determine where the problem lies.

Step 5: Analyzing Debug Data Generated

Now that your application is paused at a breakpoint, you can analyze the debug data using the debugging tools in Visual Studio 2019. Follow the sequence of steps below:

  1. Use the “Locals” window to display the values of variables and expressions
  2. Use the “Watch” window to keep an eye on the values of variables and expressions while the application is still running
  3. Use the “Call Stack” window to view the current call stack, showing the sequence of function calls that led to the current location in your code
  4. Use the “Output” window to view debug messages your TypeScript code generates using the console.log() function
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Conclusion

Debugging TypeScript code in Visual Studio 2019 is an intense and bustling exercise that helps you to unearth and fix all errors and bugs residing in your code. You can become a guru of TypeScript debugging in Visual Studio 2019 when you follow the above steps, namely creating a TypeScript project, adding TypeScript code to it, setting breakpoints, starting to debug, and analyzing the debug data generated using various debugging tools.

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