Question

In Javascript, is it possible to cache the results of eval?

For example it would be great if I could:

var str="some code...";
var code = eval(str);
//later on...
code.reExecute();

Answer 1

You can make str the body of a function and use New Function instead of eval.

var fn = new Function([param1, param2,...], str);

And reuse it by calling fn(p1, p2,...)

Or use eval, and make str be something like

var fn = eval("(function(a){alert(a);})")