big-bro

Node module for watching an object for changes. WORK IN PROGRESS, still need to seriosuly clean up the controll flow and add use cases. POC at the moment.

Getting Started

Install the module with: npm install big-bro

Documentation

Big brother gives you the ability to watch a model objects fields and asynchronously act on changes.

Example

var bigbro = require('big-bro');

var anObj = {
    a: 'A',
    b: 'B',
    c: {
        d: 'D',
        e: 'E'
    },
    arr: [0, 1, 2]
};

// Instantiate wiretapping of your model object. Callbacks can be a single function
// or an array of functions.
var holder = bigbro({
    obj: anObj,
    callbacks: function (updatedObj) {
        // Do something with the updated version of your model object.
    }
});

// Make some changes to your watched model. All of the following will fire off your callbacks.
anObj.a = 'F';
anObj.arr.push(3);

// Add another wiretapper.
holder.addListener(function (updatedObj) {
    // Do another thing with the updated version.
});

// Pause all callbacks. Objet will still update but callbacks won't fire.
holder.suspend();

// Resume the execution of callbacks.
holder.resume();

// Remove all callbacks for good.
holder.clearListeners();

Contributing

In lieu of a formal styleguide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality. Lint and test your code using 'make'

License

Copyright (c) 2015 Craig Offutt. Licensed under the MIT license.