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February 24, 2017 11:55
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Javascript Singleton Pattern
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| var Singleton = (function () { | |
| var instance; | |
| function createInstance() { | |
| var object = new Object("I am the instance"); | |
| return object; | |
| } | |
| return { | |
| getInstance: function () { | |
| if (!instance) { | |
| instance = createInstance(); | |
| } | |
| return instance; | |
| } | |
| }; | |
| })(); | |
| function run() { | |
| var instance1 = Singleton.getInstance(); | |
| var instance2 = Singleton.getInstance(); | |
| alert("Same instance? " + (instance1 === instance2)); | |
| } |
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