webpack/examples/hybrid-routing/router.js

var render = require("./render");

// Event when another page should be opened
// Maybe hook click on links, hashchange or popstate
window.onLinkToPage = function onLinkToPage(name) { // name is "a" or "b"
	// require the page with a dynamic require

	// It's important that this require only matches the pages
	//  elsewise there is blood in the bundle. Here this is done with a
	//  specific file prefix. It's also possible to use a directory,
	//  overwriting the RegExp with the ContextReplacementPlugin, or
	//  using the require.context method.

	// The bundle-loader is used to create a chunk from the page
	//  -> Pages are only loaded on demand

	// This line may throw a exception on runtime if the page wasn't found.
	var pageBundle = require("bundle-loader!./" + name + "Page");

	// Wait until the chunk is loaded
	pageBundle(function(page) {
		render(page);
	});
}