Debugging and troubleshooting techniques for front end developers

Debugging and troubleshooting are essential skills for front-end developers to have in their toolkit.

As a front-end developer, debugging and troubleshooting are an inevitable part of the job. Whether it’s fixing a broken layout, resolving a compatibility issue, or fixing a bug in your code, the ability to quickly identify and resolve issues is key to delivering high-quality, user-friendly websites and applications. In this blog post, we’ll take a look at some effective techniques for debugging and troubleshooting in front-end development.

Use browser developer tools

Browser developer tools, such as those found in Google Chrome, Mozilla Firefox, and Microsoft Edge, provide a wealth of information and tools for debugging and troubleshooting your code. They allow you to inspect and modify the HTML, CSS, and JavaScript of your website or application in real-time, making it easy to identify and resolve issues.

Some key features of browser developer tools include the ability to inspect and modify the DOM, view the network requests made by your website or application, and debug JavaScript code using breakpoints and the JavaScript console.

Keep your code organised

Keeping your code organised and well-structured is an important aspect of debugging and troubleshooting. By writing clean and readable code, you’ll make it easier to identify the source of any issues, and to find and resolve them quickly. You want to steer away from repeating yourself in your code. I highly recommend looking into using SCSS and BEM.

In addition, using a CSS preprocessor, such as Sass or Less, can help you write more maintainable and scalable CSS, making it easier to manage and troubleshoot any issues that may arise.

Use logging and debugging statements

Logging and debugging statements can be incredibly useful for tracking down issues in your code. By strategically placing console.log() statements in your JavaScript code, you can see what values your variables are taking at different points in your code.

Similarly, you can use the debugger keyword to stop your code at a specific line, allowing you to inspect the values of variables and evaluate expressions in real-time.

Test across multiple browsers and devices

Testing your website or application across multiple browsers and devices is an important aspect of debugging and troubleshooting. With the wide range of browsers and devices available, it’s important to test your code in as many different environments as possible to ensure that it’s working as expected.

In addition to testing in different browsers, it’s also important to test your code in different screen sizes and resolutions, as this can reveal layout and compatibility issues that may not be apparent on your primary development machine.


Debugging and troubleshooting are essential parts of front-end development, and having the right techniques and tools can make the process much more manageable. Whether it’s using browser developer tools, keeping your code organised, using logging and debugging statements, or testing across multiple browsers and devices, these techniques can help you resolve issues quickly and efficiently, leading to higher-quality and more user-friendly websites and applications.

Give me a call on 0401 302 281 or say hello at to discuss your next website design and front end development project.