How override eval function in javascript?

Question

For example:

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


        

Answer 1

Maybe I didn't understand the question correctly, but I "override" eval()by creating a myEval() function that has the original eval() inside it and execute addition steps in myEval().

function myEval = function(value){
    //do your stuff here
    //for example
    try {
        value = eval(value)
    } catch (error) {
        console.log(error)
        value = NaN
    }
    return value
}