From This setup assumes you keep all your JavaScript files in a "scripts" directory in your project. For example, if you have a project that has an project.html page, with some scripts, the directory layout might look like so: project-directory/ project.html scripts/ main.js helper/ util.js Add require.js to the scripts directory, so it looks like so: project-directory/ project.html scripts/ main.js require.js helper/ util.js To take full advantage of the optimization tool, it is suggested that you keep all inline script out of the HTML, and only reference require.js with a require call like so to load your script: My Sample Project

My Sample Project

You could also place the script tag end of the section if you do not want the loading of the require.js script to block rendering. For browsers that support it, you could also add an async attribute to the script tag. Inside of main.js, you can use require() to load any other scripts you need to run. This ensures a single entry point, since the data-main script you specify is loaded asynchronously. ### OUTDATED ### require(["helper/util"], function(util) { //This function is called when scripts/helper/util.js is loaded. //If util.js calls define(), then this function is not fired until //util's dependencies have loaded, and the util argument will hold //the module value for "helper/util". }); That will load the helper/util.js script. To get full advantage of RequireJS, see the API docs to learn more about defining and using modules.