Cannot get observe to work about observe-js

[rafaelw]

Please read the bottom of the README (https://github.com/Polymer/observe-js)
"About delivery of changes".

Short answer: if Object.observe is not present, you need to call
Platform.performMicrotaskCheckpoint() to trigger dirty-checking of
observers and delivery of changes.

On Sun, Dec 8, 2013 at 6:05 AM, Rob Evans [email protected] wrote:

Hey guys,

I've been playing with this lib to see if I can use it as a polyfill. I've
included the observe.js and in the console created a basic object:

var a = { moo: 0 };

Then added a path observer:

new PathObserver(a, 'moo', function() { console.log(arguments); });

Then updated the object:

a.moo = 2;

Nothing gets called. I've also tried multiple different ways of doing this
but no luck. Can someone point me in the right direction here? :) thank you!

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Reply to this email directly or view it on GitHubhttps://github.com//issues/36
.

[wereHamster]

The readme is wrong. The API has changed. PathObserver constructor now only takes two arguments, and you attach callbacks in a separate call:

var observer = new PathObserver(a, 'moo');
observer.open(function() { console.log(arguments); });

See also how it's used in the tests: https://github.com/Polymer/observe-js/blob/04285a42bd8dfb7998709149e2c20ce204bd8148/tests/test.js

[rafaelw]

Apologies for the stale API docs. I've updated the docs. Please open more bugs if you find any other problems.