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December 28, 2015 18:58
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Port of flpjax example to core.async
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| (ns calc.core | |
| (:require [dommy.core :as dom] | |
| [cljs.core.async :refer [>! <! chan put!]]) | |
| (:require-macros [cljs.core.async.macros :refer [alt! go-loop]]) | |
| (:use-macros [dommy.macros :only [sel sel1]])) | |
| (defn setup [id] | |
| (let [el (sel1 id) | |
| out (chan) | |
| put-value-on-channel! #(put! out (js/parseFloat (dom/value el)))] | |
| (dom/listen! el :blur put-value-on-channel!) | |
| (put-value-on-channel!) | |
| out)) | |
| (defn ^:export start [] | |
| (let [n1 (setup :#n1) | |
| n2 (setup :#n2) | |
| sum (sel1 :#sum)] | |
| (go-loop [x (<! n1) y (<! n2)] | |
| (dom/set-html! sum (+ x y)) | |
| (alt! | |
| n1 ([x'] (recur x' y)) | |
| n2 ([y'] (recur x y')))))) |
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| <html> | |
| <body onload="calc.core.start()"> | |
| <h3>Demo</h3> | |
| <input type="test" id="n1" value="0"/> + | |
| <input type="text" id="n2" value="0"/> = | |
| <span id="sum">0</span> | |
| <script src="out/goog/base.js" type="text/javascript"></script> | |
| <script src="calc.js" type="text/javascript"></script> | |
| <script type="text/javascript">goog.require("calc.core");</script> | |
| </body> | |
| </html> |
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