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JavaScript Array Clone

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Similar implementation
var originalJSONObj = this.jsonPanelData.fieldList; //fieldList is the json object being passed from server side var clonedJSONObj = this.deepCloneJSON(originalJSONObj); //clonedJSONObj is the cloned object deepCloneJSON: function(obj) { var o 

You would obtain the same with splice
Array.prototype.clone = function() { return this.splice(0); } Except that not all objects have a clone method, so actually I think the use of splice might be less error prone :) 

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