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Mastering Reactive JavaScript by Erich de Souza Oliveira

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Observables from DOM events (asEventStream)

To create an EventStream from DOM events (a mouse click for instance), we will need an HTML page with jQuery (or Zepto.js); bacon.js adds the asEventStream()method for all jQuery objects. So if we want to create an EventStream from a button click, we can use the following code:

var clickEventStream = $('#myButton').asEventStream('click'); 

This line creates an EventStream from button clicks on a DOM object with the ID myButton. If we want to execute an action every time this button is clicked, we will need to use the onValue() method from this event stream. The following code shows an alert on the screen every time the user clicks on the button:

clickEventStream.onValue(function(){  alert('Button ...

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