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exports.isEmpty = function(value){
	let typeofValue = typeof value;
	switch (typeofValue) {
	    case "string":
	    	return value.trim().length == 0;
	    	break; 
	    case "number":
	        return isNaN(value);
	        break; 
	    case "undefined":
	        return true;
	        break;
	    case "object":
	        return value == null || JSON.stringify(value).trim().length < 3;
	        break;	        
	    default: 
	        return false;
	}
}