Conditional Importation of ES6 Modules

In ES6, the 'import' and 'export' keywords can only appear at the top level of a module. This prevents conditional importation, a common requirement in many applications. This question explores a solution to this problem.

Initially, the user attempted to use conditional statements to import a module, but this resulted in a SyntaxError. The user then investigated using System.import, but encountered difficulties locating the necessary resources.

The solution to conditional importation is provided by introducing dynamic imports in ECMAScript 2020. Dynamic imports use the import() function, which takes a string argument representing the module name. The function returns a promise that resolves to the imported module.

Here's how you can conditionally import a module using dynamic imports:

if (condition) {
  import('something')
  .then((something) => {
    console.log(something.something);
  });
}

In this example, the 'import' keyword appears within a conditional statement. The import() function returns a promise that is then resolved and the module is assigned to the 'something' variable. This allows for the conditional importation of the module without syntax errors.