How override eval function in javascript?

Question

For example:

(function() {
      var proxied = window.eval;
      window.eval = function() {
        return proxied.apply(this, arguments);
      };
    })()         


        

Answer 1

I tried this in FireFox 3.6.2 and it appears to work.

I typed this directly in the FireBug command line:

var proxied = eval;
eval = function() { alert("ha"); return proxied.apply(this, arguments);};
eval(7);