service

app.service("foo", function() {
    var thisIsPrivate = "Private"
    this.variable = "This is public"
    this.getPrivate = function() {
        return thisIsPrivate
    }
})


app.factory("foo2", function() {
    return new Foobar()
})

function Foobar() {
    var thisIsPrivate = "Private"
    this.variable = "This is public"
    this.getPrivate = function() {
        return thisIsPrivate
    }
}