ctx-binding.txt

> state = {user: 'tav', setUser: function(username) {
...   console.log(this.user);
...   this.user = username;
... }}
{ user: 'tav', setUser: [Function] }
> runCb = function(cb, value) {
.....   cb(value);
..... }
[Function]
> runCb(state.setUser, 'seyi')
undefined
undefined
> keys = Object.keys(state)
[ 'user', 'setUser' ]
> for (var i = 0; i < keys.length; i++) {
.....   key = keys[i];
.....   value = state[key];
.....   if (typeof value === 'function') {
.......   state[key] = value.bind(state);
....... }
..... }
[Function]
> runCb(state.setUser, 'seyi')
tav
undefined