Adding a `this._super()` that passes arguments along to a function's scope

addSuper.js

function addSuper (subFn, superFn) {
    return function () {
        var self = this,
            args = arguments;

        this._super = function () {
            return superFn.apply(self, args);
        };

        return subFn.apply(self, args);
    }
}


// Example usage:

function supr () {
    console.log('supr was called with', arguments);
}

function inc (x) {
    this._super();
    return x + 1;
}

inc = addSuper(inc, supr);

inc(2);
// console: 'supr was called with [2]'
// → 3