My understanding is that arguments caller has been removed, and Function.prototype.caller is non-standard: > The obsolete `arguments.caller` property used to

My understanding is that arguments caller has been removed, and Function.prototype.caller is non-standard: > The obsolete `arguments.caller` property used to provide the > function that invoked the currently executing function. This > property has been removed and no longer works. https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/arguments/caller https://developer.mozilla.org/en-US/docs/Web/JavaScript/Refe... Can you provide an example of modifying a declared variable in a calling environment? I'm very interested!