When you read about Web Assembly, you can read about all the high performance languages you now can run in the browser. Never the less, I have to show you now four limitations, that you should consider before migrating to your favorite 'high performance language'.
My GitHub and npm accounts are full of interesting personal open source projects. Recently there has been some news about the `ownership of NginX`. It also is a open source project, that started as a private side project.
Permissions are a crucial part in any collaborative application. A set of rules who is allowed and able to perform certain actions. Of course permissions apply every where, where people work together, not just in computer and web applications. Even dough I want to discuss only permissions in online web or distributed applications.
DAO in application development stand for DomainAccessObject. It defines a data source and some standard methods how to access data source. Often, for each collection of data, the application has a single object, providing the access trough functions. Sometime applications have such an object for the whole runtime of the app, other create one object for the needed collections on a request or transaction basis.