BEGIN:VCALENDAR PRODID;X-RICAL-TZSOURCE=TZINFO:-//Calagator//EN CALSCALE:GREGORIAN X-WR-CALNAME:Calagator METHOD:PUBLISH VERSION:2.0 BEGIN:VTIMEZONE TZID;X-RICAL-TZSOURCE=TZINFO:America/Los_Angeles BEGIN:DAYLIGHT DTSTART:20120311T020000 RDATE:20120311T020000 TZOFFSETFROM:-0800 TZOFFSETTO:-0700 TZNAME:PDT END:DAYLIGHT END:VTIMEZONE BEGIN:VEVENT CREATED;VALUE=DATE-TIME:20120606T201805Z DTEND;TZID=America/Los_Angeles;VALUE=DATE-TIME:20120620T210000 DTSTART;TZID=America/Los_Angeles;VALUE=DATE-TIME:20120620T190000 DTSTAMP;VALUE=DATE-TIME:20120606T201805Z LAST-MODIFIED;VALUE=DATE-TIME:20120606T201805Z UID:http://calagator.org/events/1250462444 DESCRIPTION:Kevin Lynagh will talk to us about data-driven web applicatio ns with ClojureScript: \;\nA web page or application is\, at its core \, just a visual representation of data that people can read\, look at\, and manipulate. Typically the mapping between the abstract data and ele ments on the screen is implicit in the code: take some piece of the data \, do X here\, do Y there\; when the user clicks on that thing\, modify the page here\, and so on. \;\nReasoning about such code is difficult : either control is inverted across many different callbacks with comple cted concerns\, or one must endure a great deal of ceremony with models\ , controllers\, view models\, and views/templates to structure an applic ation. Ideally when we build a web application all we should have to do is describe how our application's data should be represented on the DOM. We shouldn't need to worry about callbacks\, twiddling the attributes o f particular elements\, or updating cached state.As it turns out\, Cloju reScript's rich data structures and semantics allows us to easily write such simple\, declarative code. I will discuss these ideas using example s from visualization-rich dashboard applications.Recommended reading:C2: http://keminglabs.com/c2/Knockout.js: http://knockoutjs.com/Rich Hickey 's talk on the benefits of immutability: http://www.infoq.com/presentati ons/Are-We-There-Yet-Rich-Hickey\n\nTags: meetup:group=clojerks\, meetup :event=67939192\, functional programming\, clojure\n\nImported from: htt p://calagator.org/events/1250462444 URL:http://www.meetup.com/clojerks/events/67939192/ SUMMARY:clojerks: Data-driven web applications in ClojureScript LOCATION:Simple: 1615 SE 3rd Ave\, Suite 200\, Portland OR 97214 US SEQUENCE:3 END:VEVENT END:VCALENDAR