System requires SystemJS Finally, the way you go about invoking the following function would be like this: It does not store any personal data. The require() instructions inside the main program (index.js), work fine. --bold headerEl.textContent = lodash.upperCase("hello world"); Thats it. So, it cannot '$' the variable and throw the error.
RequireJS Tutorial Your project structure should look as follows: Now all you need to do is use requirejs function to load lodash, then pass it to the callback function. The uncaught ReferenceError: required is not defined in JavaScript error usually occurs when JavaScript doesnt know how to handle the require() function. The require() function is used when you need to load a package or a module into your JavaScript file. To add it to your project, you need to download the latest RequireJS release and put it in your scripts/ folder.Next, you need to call the script on your main HTML header as follows: But even when you are running the code using Node, you may still see the require is not defined error because of your configurations.Heres the error logged on the console:$ node index.js I explored the files that got deployed with the projects, and require was included in the solution/path. Using Ubuntu LAMP all it's ok ! Personally, I think its far easier to use ESM import/export syntax because popular browsers already support it by default.
