In HTML, the attribute name is in all lowercase and is given a string invoking a function defined somewhere: In React, the attribute name is camelCase and are passed the function reference inside curly braces: In HTML, false can be returned to Continue reading What is the difference between HTML and React event handling?
If neither attribute is present, the script is downloaded and executed synchronously, and will halt parsing of the document until it has finished executing (default behavior). Scripts are downloaded and executed in the order they are encountered. The defer attribute downloads the Continue reading What are defer and async attributes on a Script tag?
When several components need to share the same data, then it is recommended to lift the shared state up to their closest common ancestor. For example, if two child components share the same data, it is recommended to move the Continue reading What does lifting state up in React mean?