dirtyable.js

dirtyable.js helps you keep track of changes to properties on objects.

It aims to be a javascript equivalent to ActiveModel::Dirty

Get it.

npm install dirtyable

Track your objects.

dirtyable.extend(object, ['foo', 'bar'])

How to use it

var dirtyable = require('dirtyable');
 
var obj = {
    foo: 'fizzle',
    bar: 42,
    baz: 'black sheep'
};
dirtyable.extend(obj, ['foo', 'bar']);
 
obj.foo // => 'fizzle'
obj.foo_isChanged // => false
obj.foo = 'fo shizzle'
obj.foo_isChanged // => true

What it does

On the object, it defines the following getters

• .isChanged
• .changes
• .changed

And for each property it extends, it overrides the property with a getter/setter, then adds the following

• .<property>_isChanged
• .<property>_change
• .<property>_was

For more information, check out the annotated source