valueAsObservable.js

// jQuery extensions

$.fn.valueAsObservable = function valueAsObservable() {
    var changes = $(this).changeAsObservable();
    var keyUps = $(this).keyupAsObservable();
    var values = changes.merge(keyUps).map(function (e) {
        return e.target.value;
    });
    return values.startWith($(this).val()).distinctUntilChanged();
}

// Define some streams

var nameS = $('#user-info input[name=name]').valueAsObservable().subscribe(log);

// Throttling (if rx.time.js is included)

var throttledNameS = nameS.throttle(1000); // milliseconds