Choosing Inline Versus Module MLE Call Specifications

Each option provides its own advantages and disadvantages depending on your use case.

Inline MLE call specifications can simplify the development workflow and provide a way to quickly implement simple JavaScript functionality, as there is no need to deploy a separate module containing the JavaScript code. This is a convenient option if you only need to implement a single JavaScript function. You can use JavaScript global variables to access the functionality of MLE built-in modules but, because inline MLE call specifications are not associated with an MLE environment, modules cannot be imported.

Call specifications for MLE modules offer more flexibility in terms of complexity and ability to import functionality from other modules, built-in and custom. You also have the option to override the default JavaScript type mapping, which is not possible with MLE inline call specifications. Call specifications for MLE modules should be used for larger pieces of JavaScript code as well as for code that you intend to reuse in other JavaScript code using imports.