Dynamically load a JavaScript file

Question

How can you reliably and dynamically load a JavaScript file? This will can be used to implement a module or component that when \'initialized\' the component will dynamical

Answer 1

There's a new proposed ECMA standard called dynamic import, recently incorporated into Chrome and Safari.

const moduleSpecifier = './dir/someModule.js';

import(moduleSpecifier)
   .then(someModule => someModule.foo()); // executes foo method in someModule