/lovable-issues

Customizing Code Style and Preferences in Lovable Projects

Uncover why Lovable’s default code style may not match your stack preferences. Customize settings with proven best practices.

Matt Graham, CEO of Rapid Developers

Book a call with an Expert

Starting a new venture? Need to upgrade your web app? RapidDev builds application with your growth in mind.

Book a free No-Code consultation

Why Code Style Defaults May Not Match Stack Preferences in Lovable

 
Understanding Code Style Defaults
 

Imagine you have a tool that writes down instructions in a standard way. This "default" way is set up by the tool designers so that it works for most people in most situations. However, different communities, like the group of users on a platform called Lovable, might have grown used to a different way of writing these instructions. In programming, these instructions are the code style – things like how much space you put before a line of text, whether you use double or single quotes, or even where you decide to put commas.

For example, a tool may decide every piece of code should look like this:


{
  "indent\_size": 2,
  "semi": true,
  "quotes": "double"
}

This is a set of default instructions designed to make reading the code easier for many people. However, the folks on Lovable may have their own style that they find cleaner or more suited to their way of thinking.

 
Impact of Different Community Preferences
 

In groups like those on Lovable, experienced users often share their own style guidelines that they have refined over time. They might decide that a different spacing or a particular punctuation style makes the code easier to understand in their context. These preferences come from factors such as:

  • Historical practices within that community
  • Comfort and readability over years of adjustments
  • Feedback from many users who know what makes code clearer for them

What this means is that while the default style is meant to be safe and universal, it might not feel as natural to those who have been using an alternative set of rules. The defaults are a starting point, but community-driven practices evolve for personal and collective clarity.

 
How Mismatches Happen
 

Sometimes, when you use a tool, it automatically sets your code style based on what the tool’s creators think is best. But if you then share your work on Lovable, the people there might prefer another style that they have been using for a long time. One reason is that the default rules in a code editor or formatter are not adjusted for every niche group’s practices.

Here is another small example of a coding style difference – in one case, the code might look like this:


def greet():
    print("Hello, world!")

Whereas the community on Lovable might prefer a style that emphasizes even more spacing or a different layout to make the structure of the code stand out more. The difference might be as subtle as how the lines are indented, or as clear as the arrangement of statements.

The bottom line is that the default settings are made with the broad public in mind. They aim for a balanced approach that works for many, but they’re not always tailored to the specialized tastes of every group. Thus, when you see a mismatch between the defaults and stack preferences on Lovable, it’s really just a clash between an all-encompassing rule set and a community’s carefully honed habits over time.

How to Customize Code Style Settings in Lovable

 
Creating the Code Style Configuration File
 

  • In the Lovable project workspace, create a new file called lovable-config.json in the root directory.
  • This file will hold all your custom code style settings.
  • Copy the following code snippet into lovable-config.json:
    • 
      {
        "codeStyle": {
          "indentation": "4 spaces",
          "lineLength": 80,
          "braceStyle": "SameLine",
          "useSemiColon": true
        }
      }
            
  • This configuration sets the indentation to 4 spaces, limits each line to 80 characters, places braces on the same line, and uses semicolons where needed.

 
Linking the Configuration to Lovable Editor
 

  • Locate the main Lovable editor file. This could be a file named editor.js in the project’s src folder.
  • At the very top of editor.js, insert the following code snippet to load your custom style settings:
    • 
      // Load the code style settings from lovable-config.json
      fetch('lovable-config.json')
        .then(response => response.json())
        .then(config => {
          // Apply the code style settings to the editor
          applyCodeStyle(config.codeStyle);
        })
        .catch(error => {
          console.error('Error loading code style settings:', error);
        });
      
      

      // Function to apply code style settings (this is an example stub)
      function applyCodeStyle(styleSettings) {
      // The following lines show where and how to customize the editor
      // Set indentation
      editor.setIndentation(styleSettings.indentation);

      // Set maximum line length
      editor.setLineLength(styleSettings.lineLength);

      // Set brace style (for instance, placing braces on the same line)
      editor.setBraceStyle(styleSettings.braceStyle);

      // Optionally, toggle semicolon usage
      editor.setUseSemiColon(styleSettings.useSemiColon);
      }




  • This code fetches the lovable-config.json file and applies the specified settings to the editor. It uses a simple function applyCodeStyle as an example. In a real Lovable setup, the functions like setIndentation would be part of the editor’s API.

  • Ensure that the code snippet is added at the top of the file so that the style settings are applied immediately when the editor loads.

 
Customizing Additional Editor Behavior
 

  • If further customization is needed, create another file called customStyle.js in the src folder.
  • Insert any additional customization functions in customStyle.js. For example, to change font size and highlight current line, add:
    • 
      document.addEventListener('DOMContentLoaded', function() {
        // Set custom font size
        editor.setFontSize('14px');
        
      

      // Enable current line highlighting for better readability
      editor.enableCurrentLineHighlight(true);
      });




  • Then, include this file in your project by adding the following line in the index.html file before the closing </body> tag:




    • <script src="src/customStyle.js"></script>



  • This ensures that once the page loads, your additional style customizations take effect.

 
Installing Dependencies Without a Terminal
 

  • Since Lovable does not offer a terminal, dependencies must be installed through in-code instructions.
  • If the editor requires a specific dependency for code styling (for example, a library that formats code), add a script tag in index.html in the <head> section:
    • 
      <script src="https://cdn.example.com/code-style-lib.js"></script>
            
  • This line tells the system to load the external JavaScript library automatically. Make sure the URL provided is the correct path to the dependency.

Want to explore opportunities to work with us?

Connect with our team to unlock the full potential of no-code solutions with a no-commitment consultation!

Book a Free Consultation

Best Practices for Customizing Code Style in Lovable

 
Creating a Custom Code Style Configuration File
 

  • In the main folder of your Lovable project, create a new file named lovable.style.config.js. This file will hold your preferences for code formatting such as spacing, quotation marks, and maximum line lengths.
  • Inside lovable.style.config.js, add the following code snippet. It sets the basic style rules. You can update these settings later when your style needs change.
    
    module.exports = {
      indent: 2,                  // Number of spaces for indentation
      quotes: "double",           // Use double quotes for strings
      trailingComma: "none",      // No trailing commas at the end of lists or objects
      maxLineLength: 80,          // Maximum number of characters per line
      rules: {
        semi: true,               // End statements with semicolons
        spaceBeforeFunctionParen: true  // Add a space before the parentheses in function definitions
      }
    };
        
  • Save this file at the root level of your project. Lovable will automatically pick up these settings when formatting your code.

 
Integrating the Custom Configuration into Your Project
 

  • Open your main JavaScript file, for example index.js. At the very top, insert the following code snippet to import the custom configuration settings:
    
    const styleConfig = require('./lovable.style.config');
        
  • Use the imported styleConfig in your formatter function or any other part of your code that controls code style. This ensures that whenever your project runs its formatting routines, it uses your defined rules.

 
Auto-Installing Required Dependencies Without a Terminal
 

  • Since Lovable does not have access to a terminal, you can include code that auto-installs any dependencies when your project runs. In your main file index.js, add the following code snippet which lists required dependencies (such as code formatting libraries):
    
    import { installDependencies } from 'lovable-auto-install';
    
    

    // List all dependencies your style customization requires
    installDependencies(['prettier', 'eslint']);




  • This snippet should be placed near the top of your file so that dependencies are installed before any further code is executed.

 
Embedding Style Directives in Your Source Files
 

  • To ensure that every source file follows the same code style, add a comment at the beginning of each file. For example, in app.js, include:
    
    // lovely-style: indent=2 quotes=double maxLineLength=80
        
  • This comment acts as an in-file guideline for your custom formatting rules. It is especially useful if you later decide to override the defaults for a specific file.

 
Best Practices and Troubleshooting Tips
 

  • Centralize Your Configuration: Always keep your style rules in one configuration file (lovable.style.config.js) so that changes affect all parts of your project.
  • Keep Comments Updated: Document any changes in the configuration file and in your source file comments. This makes it easier to troubleshoot if the formatting is not as expected.
  • Test Incrementally: When updating style rules, test by running a small part of your code to ensure that the new settings are applied correctly.
  • Centralize Dependency Management: By using an auto-install snippet, you avoid manual dependency installation. Just be sure to include all formatting libraries your project needs.
  • Regular Reviews: Periodically review your style settings to ensure they continue to meet your coding standards as your project grows.

Client trust and success are our top priorities

When it comes to serving you, we sweat the little things. That’s why our work makes a big impact.

Rapid Dev was an exceptional project management organization and the best development collaborators I've had the pleasure of working with. They do complex work on extremely fast timelines and effectively manage the testing and pre-launch process to deliver the best possible product. I'm extremely impressed with their execution ability.

CPO, Praction - Arkady Sokolov

May 2, 2023

Working with Matt was comparable to having another co-founder on the team, but without the commitment or cost. He has a strategic mindset and willing to change the scope of the project in real time based on the needs of the client. A true strategic thought partner!

Co-Founder, Arc - Donald Muir

Dec 27, 2022

Rapid Dev are 10/10, excellent communicators - the best I've ever encountered in the tech dev space. They always go the extra mile, they genuinely care, they respond quickly, they're flexible, adaptable and their enthusiasm is amazing.

Co-CEO, Grantify - Mat Westergreen-Thorne

Oct 15, 2022

Rapid Dev is an excellent developer for no-code and low-code solutions.
We’ve had great success since launching the platform in November 2023. In a few months, we’ve gained over 1,000 new active users. We’ve also secured several dozen bookings on the platform and seen about 70% new user month-over-month growth since the launch.

Co-Founder, Church Real Estate Marketplace - Emmanuel Brown

May 1, 2024 

Matt’s dedication to executing our vision and his commitment to the project deadline were impressive. 
This was such a specific project, and Matt really delivered. We worked with a really fast turnaround, and he always delivered. The site was a perfect prop for us!

Production Manager, Media Production Company - Samantha Fekete

Sep 23, 2022