Introduction to Requizzle

Requizzle is a unique JavaScript library that provides powerful mechanisms for extending and overriding Node.js modules. It’s highly useful for customizing the behavior of existing libraries and applications without modifying their core code.

API Examples with Requizzle

Basic Usage

    
      const requizzle = require('requizzle')({
          requirePaths: {
              before: ['path/to/extras'],
              after: ['path/to/more-extras']
          },
          infect: true
      });

      const someModule = requizzle('some-module');
    
  

Extending Module Functionality

    
      // Original module
      module.exports = function() {
          console.log('Original functionality');
      };
      
      // Inject additional functionality with Requizzle
      const customModule = requizzle('original-module');
      const originalFunctionality = customModule();
      
      customModule.newFunction = function() {
          console.log('Extended functionality');
      };

      customModule.newFunction(); // Output: Extended functionality
    
  

Modifying Module Exports

    
      // Original module
      module.exports = {
          greet: function() {
              console.log('Hello');
          }
      };

      // Requizzle to modify exports
      const customModule = requizzle('original-module');
      customModule.greet = function() {
          console.log('Hello, world!');
      };

      customModule.greet(); // Output: Hello, world!
    
  

Complete App Example

    
      // app.js
      const requizzle = require('requizzle')({
          requirePaths: {
              before: ['custom-path']
          },
          infect: true
      });

      const originalModule = requizzle('./original.js');

      // Extending the module's functionality
      originalModule.newFeature = function() {
          console.log('This is a new feature');
      };

      // Using the modified module in an application
      const express = require('express');
      const app = express();

      app.get('/', (req, res) => {
          originalModule.newFeature();
          res.send('Check the console for output.');
      });

      app.listen(3000, () => {
          console.log('Server running on port 3000');
      });
    
  

By leveraging Requizzle, developers can ensure their modules remain up-to-date and highly customizable without altering the original source code, which is particularly useful in collaborative environments and legacy systems.

Hash: 7d5fb454541239eafdc1b4b4c6c755cca26f578aa0982224fce27d8f227fb8af