Before ECMAScript 2015, module management had to be ad-hoc or provided by 3rd-party libraries such as Node.js, Webpack, or RequireJS. Fortunately, ES2015, provides language-standard mechanisms for module management, `import` and `export`, and older usages should be converted.

## Noncompliant Code Example

    // circle.js
    exports.area = function (r) {
      return PI * r * r;
    };

    // foo.js
    define(["./cart", "./horse"], function(cart, horse) {  // Noncompliant
      // ...
    });

    // bar.js
    const circle = require('./circle.js');  // Noncompliant

## Compliant Solution

    // circle.js
    let area = function (r) {
      return PI * r * r;
    }
    export default area;

    // foo.js
    import cart from "./cart.js";
    import horse from "./horse.js";

    // bar.js
    import circle from "./circle.js"