In JavaScript, what code executes at runtime and what code executes at parsetime?

Question

With objects especially, I don\'t understand what parts of the object run before initialization, what runs at initialization and what runs sometime after.

EDIT: It s

Answer 1

Not sure what you ask exactly so I'll just share what I know.

JavaScript functions are "pre loaded" and stored in the browser's memory which means that when you have function declared in the very end of the page and code calling it in the very beginning, it will work.

Note that global variables, meaning any variable assigned outside of a function, are not preloaded, so can be used only after being declared.

All commands outside of a function will be parsed in the order they appear.

JavaScript doesn't really have "runtime", it can only respond to events or have code executed via global timers. Any other code will be parsed and "forgotten".