Template Strings - Confusing Example

[gsklee]

GET`http://foo.org/bar?a=${a}&b=${b}
    Content-Type: application/json
    X-Credentials: ${credentials}
    { "foo": ${foo},
      "bar": ${bar}}`(myOnReadyStateChangeHandler);

I don't understand this example; can we have more explanation on this? Otherwise it looks bugged for me.

[basarat]

good explanation

[gsklee]

@chuyik Thanks!

[lukehoban]

The original example in the post actually has one additional interesting element that isn't captured in @chuyik's implementation example.

Tagged templates can return any kind of object, not just a string. In this example, the GET tag returns a function which makes a request to the provided URI with a callback myOnReadyStateChangeHandler passed to the function.