Can I get an unbound function from a bound function in JavaScript?

Question

I\'m getting my head wrapped about currying and other techniques using Function.prototype.bind.
It seems extremely useful to change function scope (i.e., this

Answer 1

This would actually solve you issue

const bind = Function.prototype.bind;
Object.defineProperty(Function.prototype, 'bind', {
    value: function () {
        const result = bind.apply(this, arguments);
        result.source = (this.source || this);
        return result;
    }
});

Now you can get the source property to get the original function. This could cause other issues, but performance does not seem to be one of them, https://jsperf.com/bind-override/1

Both IE, Edge, Firefox and Chrome seems to get the same result, sometimes the normal version is faster and sometimes the overridden is faster.