Created
December 25, 2018 07:16
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Singleton pattern in vanilla javascript
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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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