js-bind.js

    my_hello = 'Hello!'
    my_world = {
        'antartica': 'cold',
    }

    anonymous_callback = function (injected1, injected2, param1, param2) {
        param1 = param1 ? param1 : 'One';
        param2 = param2 ? param2 : 'Two';

        console.log('param1: (' + typeof(param1) + ') ' + param1)
        console.log('param2: (' + typeof(param2) + ') ' + param2)

        console.log('injected1: (' + typeof(injected1) + ') ' + injected1)
        console.log('injected2: (' + typeof(injected2) + ') ' + injected2)
        console.log(injected2)
    }.bind(this, my_hello, my_world)

    anonymous_callback('Param 1', 'Param 2')

"
    param1: (string) Param 1
    param2: (string) Param 2
    injected1: (string) Hello!
    injected2: (object) [object Object]
    { antartica: 'cold' }
"