21 lines
480 B
JavaScript
21 lines
480 B
JavaScript
function Singleton() {
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if(Singleton._instance) return Singleton._instance;
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this.set("");
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Singleton._instance = this;
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}
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Singleton.prototype.set = function(msg) { this.msg = msg; }
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Singleton.prototype.append = function(msg) { this.msg += msg; }
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Singleton.prototype.get = function() { return this.msg; }
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var a = new Singleton();
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var b = new Singleton();
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var c = new Singleton();
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a.set("Hello");
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b.append(" World");
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c.append("!!!");
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document.write( (new Singleton()).get() );
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