Sudo methods in JS

sudo methods.js

var sudo = (function(arr, obj) {
    [
        ['forEach', arr, 'each'],
        ['map', arr],
        ['indexOf', arr],
        ['filter', arr],
        ['hasOwnProperty', obj, 'has'],
        ['toString', obj]
    ].forEach(function(method) {
        var fn = method[1][method[0]];
        obj[method[2] || method[0]] = fn.call.bind(fn);
    });
    return obj;
})([], {});