Can I observe additions to an array with rx.js?

Question

fromArray Rx wiki on github

coffee> rext = require \'rx\'                                                 
coffee> arr = [1..5]                                 


        

Answer 1

In RxJS what you are looking for is called a Subject. You can push data into it and stream it from there.

• Subject getting started guide
• Subject API docs.

Example:

var array = [];
var arraySubject = new Rx.Subject();

var pushToArray = function (item) {
  array.push(item);
  arraySubject.next(item);
}

// Subscribe to the subject to react to changes
arraySubject.subscribe((item) => console.log(item));