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Filtering jsondata are slow -- eval
20/08/2013
16:32
16:32
minggi
New Member
Members
Forum Posts: 2
Member Since:
28/03/2013
28/03/2013
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Hi
I have a filtering perfomance problem.
Now I fixed the problem with code below (replace the eval function):
Make this sense for you or have I an other problem with this code? It works much faster 
this.execute=function(){
var match=_query, results=[];
if(match === null){
return self;
}
$.each(_data,function()
{
window.gridThis = this;
if(new Function("return " + match.replace(/this/g, "window.gridThis") + ";")())
{
results.push(this);
}
});
_data=results;
return self;
};
var match=_query, results=[];
if(match === null){
return self;
}
$.each(_data,function()
{
window.gridThis = this;
if(new Function("return " + match.replace(/this/g, "window.gridThis") + ";")())
{
results.push(this);
}
});
_data=results;
return self;
};
Th original code was:
this.execute=function(){
var match=_query, results=[];
if(match === null){
return self;
}
$.each(_data,function(){
if(eval(match)){results.push(this);}
});
var match=_query, results=[];
if(match === null){
return self;
}
$.each(_data,function(){
if(eval(match)){results.push(this);}
});
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