Created
August 6, 2014 15:15
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>JS Bin</title> | |
| </head> | |
| <body> | |
| <div> | |
| <form> | |
| <input id="odd-switch" type="checkbox" /> | |
| <label for="odd-switch">odd</label> | |
| <input id="multiple-of-7-switch" type="checkbox" /> | |
| <label for="multiple-of-7-switch">multiple of 7</label> | |
| </form> | |
| <div id="number-container"> | |
| </div> | |
| </div> | |
| </body> | |
| </html> |
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| // Singleton works as Mediator | |
| var NumberMarker = (function(config) { | |
| var singleton; | |
| return { | |
| instance: function() { | |
| if (!singleton) { | |
| singleton = Object.create(NumberMarker.prototype); | |
| for (var key in config) { | |
| singleton[key] = config[key]; | |
| } | |
| singleton.oddOn = false; | |
| singleton.multipleSevenOn = false; | |
| } | |
| return singleton; | |
| } | |
| }; | |
| })({container: "number-container", oddSwitch: "odd-switch", multipleSevenSwitch: "multiple-of-7-switch", max: 100}); | |
| NumberMarker.prototype = { | |
| say: function() { | |
| console.log("hi"); | |
| }, | |
| toggleOdd: function() { | |
| this.oddOn = !this.oddOn; | |
| for (var i = 1; i <= this.max; i = i + 2 ) { | |
| var elm = document.getElementById("number" + i); | |
| elm.style.backgroundColor = this.oddOn ? "red" : ""; | |
| } | |
| }, | |
| toggleMultipleSeven: function() { | |
| this.multipleSevenOn = !this.multipleSevenOn; | |
| for (var i = 7; i <= this.max; i = i + 7 ) { | |
| var elm = document.getElementById("number" + i); | |
| elm.style.color = this.multipleSevenOn ? "yellow" : ""; | |
| } | |
| }, | |
| render: function() { | |
| var that = this; | |
| // container | |
| for (var i = 1; i <= this.max; i++) { | |
| var p = document.createElement("p"); | |
| p.id = "number" + i; | |
| p.innerHTML = i; | |
| document.getElementById(this.container).appendChild(p); | |
| } | |
| // odd | |
| document.getElementById(this.oddSwitch).addEventListener("click", function(){ | |
| that.toggleOdd(); | |
| },false); | |
| // multiple7 | |
| document.getElementById(this.multipleSevenSwitch).addEventListener("click", function(){ | |
| that.toggleMultipleSeven(); | |
| },false); | |
| } | |
| }; | |
| var marker = NumberMarker.instance(); | |
| marker.say(); | |
| marker.render(); |
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