3 replies

Why do people use IIFE to export nodejs modules?

When watching or reading tutorial content about nodejs, I often see people exporting modules like the following

module.exports = (function(){
      return {
         nameToExpose: functionToExpose
         ...
    };
})();

module.exports = (function(){
      return {
         nameToExpose: functionToExpose
         ...
    };
})();

Is there some reason for this specific way? Why just don't export like usual?