What is `emit` javascript function?

Question

While looking through sax nodejs module, i saw multiple emit function calls, but i can't find any information about it.

Is it some V8 native tool for emitting events? Why sax-js do not use EventEmitter for streams then?

Answer 1

Please look at line number 624 of the same file.

function emit (parser, event, data) {

  parser[event] && parser[event](data)

}