Object.watch() for all browsers?

Question

Please note that Object.Watch and Object.Observe are both deprecated now (as of Jun 2018).

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I was looking for an easy way to monitor an object

Answer 1

Note that in Chrome 36 and higher you can use Object.observe as well. This is actually a part of a future ECMAScript standard, and not a browser-specific feature like Mozilla's Object.watch.

Object.observe only works on object properties, but is a lot more performant than Object.watch (which is meant for debugging purposes, not production use).

var options = {};

Object.observe(options, function(changes) {
    console.log(changes);
});

options.foo = 'bar';

Answer 2

I also think that right now the best solution is to use Watch.JS, find a nice tutorial here: Listen/Watch for object or array changes in Javascript (Property changed event on Javascript objects)