Question

Please consider the two following snippets of code:

(function f() { 
    var x;
    try {
        eval("x");
        console.log('No error!');
    }
    catch (e) {
        console.log('Error!');
    }
}(eval))

and

(function f(eval) { 
    var x;
    try {
        eval("x");
        console.log('No error!');
    }
    catch (e) {
        console.log('Error!');
    }
}(eval))

The first prints No error!, the second prints Error!. Is there a way to access “local eval” inside a function scope for which eval is one of the arguments?

Answer 1

Global functions are part of the window object. Call window.eval() instead.