Semi-sandboxing Javascript eval

Question

Background: I\'m working on a framework/library to be used for a specific site in coordination with greasemonkey/userscripts. This framework/library will al

Answer 1

If all you want is a simple getter, program one instead of trying to eval anything.

function get(input) {
    // if input is a string, it will be used as a DOM selector
    // if it is an array (of strings), they will access properties of the global object
    if (typeof input == "string")
        return document.querySelector(input);
    else if (Array.isArray(input)) {
        var res = window;
        for (var i=0; i