I am trying to modify prototypes of some base JavaScript classes and running
into an issue with qqoxdoo. First off, I know you shouldn't modify base
classes but for what I am doing I don't see a way around it. I got some
routines off the web that allow me to clone objects. More specifically they
allow me to clone JSON objects. But in order to do that I need to modify
Object/String/etc. to give them a new method, toJSON. If I use the qooxdoo
playground and run my code inside it I can make things work. If I run the
code in FireBug after my application is loaded, it works fine. But if I tack
the code to the end of my large JS file, or if I attempt to load it after my
application appears, I get the following error:
appender[id].process is not a function
And at this point my application does not run.
Does anyone know what might be happening? Or if anyone knows of a qooxdoo
friendly way to clone JSON object that would be great.
Here is the simple code I am loading:
Object.prototype.deep_clone = function(){
eval("var tmp = " + this.toJSON());
return tmp;
}
Object.prototype.toJSON = function(){
var json = [];
for(var i in this){
if(!this.hasOwnProperty(i)) continue;
//if(typeof this[i] == "function") continue;
json.push(
i.toJSON() + " : " +
((this[i] != null) ? this[i].toJSON() : "null")
)
}
return "{\n " + json.join(",\n ") + "\n}";
}
Array.prototype.toJSON = function(){
for(var i=0,json=[];i<this.length;i++)
json[i] = (this[i] != null) ? this[i].toJSON() : "null";
return "["+json.join(", ")+"]"
}
String.prototype.toJSON = function(){
return '"' +
this.replace(/(\\|\")/g,"\\$1")
.replace(/\n|\r|\t/g,function(){
var a = arguments[0];
return (a == '\n') ? '\\n':
(a == '\r') ? '\\r':
(a == '\t') ? '\\t': ""
}) +
'"'
}
Boolean.prototype.toJSON = function(){return this}
Function.prototype.toJSON = function(){return this}
Number.prototype.toJSON = function(){return this}
RegExp.prototype.toJSON = function(){return this}
Thanks,
Jim
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