Gather various dependencies using RequireJS

There are various JS modules that represent different OOP Classes, such as different types of backend tasks like SendEmailTask, WriteToDbTask, WriteToDiskTask, or different actions on a drawing canvas like DrawArc, DrawLine, DrawBezier. Each module is stored in its own JS file within a common directory.

In a client module that depends on all of these classes, the dependency list and argument list need to include each one separately. This can become cumbersome, especially when new modules are added to the set, resulting in constant updates to the code.

Are there ways to avoid these issues? One possible solution could be creating a namespace module where sub-modules depend on it and add their definitions to it. However, ensuring that the client loads after all the sub-modules might pose a challenge in this approach.

Another idea could be expressing dependencies and arguments using wildcards, such as 'tasks/*' for dependencies and an unknown placeholder for arguments.

Answer №1

To enhance modularity, consider creating distinct modules for each section of your project. For instance, you can have a module named 'tasks/main' where all necessary files are included, and the core functions related to tasks are defined. This allows you to easily call high-level functions as needed:

define(['tasks/main'], function(task){

   task.add('Project Status meeting');
   task.SendEmailNotification('tAll');

});

In the task/main.js file:

define(['tasks/sendEmailTask', 'tasks/writeToDbTask', 'tasks/writeToDiskTask',], function(sendEmailTask, writeToDbTask, writeToDiskTask){
  var task = {
        add: function(taskObj){
             // Implement your code using writeToDbTask and writeToDiskTask 
        }, 
        SendEmailNotification: function(whom){
               // Perform actions using sendEmailTask, writeToDbTask, and writeToDiskTask    
        };

   return task;           

});

Do these suggestions provide some assistance?

Answer №2

After exploring various options, I found a solution that may not be perfect, but it's definitely an improvement from the current state. Although it doesn't completely address all the issues at hand.

// located in tasks/taskNamespace.js or any client-side code

define (function(require) {

  var _taskArray = [
    require('tasks/sendEmailTask'),
    require('tasks/writeToDbTask'),
    require('tasks/writeToDiskTask'),
    /* ... , */
  ];

  var TaskNamespace = {};

  _taskArray.forEach(function (taskClass) {
    TaskNamespace[taskClass.name] = taskClass;
  });

  return TaskNamespace;

});

This approach leverages both RequireJS Sugar syntax and the upcoming JS Function.name feature expected in ES6.

What's the outcome? While you still need to manually include each Class in a list, now it's consolidated into just one list instead of two. Exciting!

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