How to handle circular dependencies with RequireJS/AMD?

by

This is indeed a restriction in the AMD format. You could use exports, and that problem goes away. I find exports to be ugly, but it is how regular CommonJS modules solve the problem:

define("Employee", ["exports", "Company"], function(exports, Company) {
    function Employee(name) {
        this.name = name;
        this.company = new Company.Company(name + "'s own company");
    };
    exports.Employee = Employee;
});
define("Company", ["exports", "Employee"], function(exports, Employee) {
    function Company(name) {
        this.name = name;
        this.employees = [];
    };
    Company.prototype.addEmployee = function(name) {
        var employee = new Employee.Employee(name);
        this.employees.push(employee);
        employee.company = this;
    };
    exports.Company = Company;
});

Otherwise, the require(“Employee”) you mention in your message would work too.

In general with modules you need to be more aware of circular dependencies, AMD or not. Even in plain JavaScript, you have to be sure to use an object like the G object in your example.

More Related Contents:

  1. Relation between CommonJS, AMD and RequireJS?
  2. RequireJS: How to define modules that contain a single “class”?
  3. module.exports vs exports in Node.js
  4. Mismatched anonymous define() module
  5. Difference between “module.exports” and “exports” in the CommonJs Module System
  6. How to stop babel from transpiling ‘this’ to ‘undefined’ (and inserting “use strict”)
  7. Loading Backbone and Underscore using RequireJS
  8. Load “Vanilla” Javascript Libraries into Node.js
  9. Dynamic require in RequireJS, getting “Module name has not been loaded yet for context” error?
  10. Does it make sense to use Require.js with Angular.js? [closed]
  11. Reason behind this self invoking anonymous function variant
  12. How to load bootstrapped models in Backbone.js while using AMD (require.js)
  13. How can I ‘require’ CommonJS modules in the browser? [closed]
  14. How can I mock dependencies for unit testing in RequireJS?
  15. Requirejs why and when to use shim config
  16. Difference between RequireJS and CommonJS
  17. What is ‘define’ used for in JavaScript (aside from the obvious)?
  18. Using RequireJS, how do I pass in global objects or singletons around?
  19. supporting both CommonJS and AMD
  20. How to disable the warning ‘define’ is not defined using JSHint and RequireJS
  21. How to check whether a script is running under Node.js?
  22. In the `import` syntax of ES6, how is a module evaluated exactly?
  23. Typescript compiler error when importing json file
  24. Node.js – use of module.exports as a constructor
  25. Ember.js and RequireJS
  26. using requirejs to load npm packages
  27. Is it possible to stop requireJS from adding the .js file extension automatically?
  28. How to correctly use ES6 “export default” with CommonJS “require”?
  29. How to import a js library without definition file in typescript file
  30. Node JS fs module inside browser

Leave a Comment