How can I get a list of the differences between two JavaScript object graphs?

Question

I want to be able to get a list of all differences between two JavaScript object graphs, with the property names and values where the deltas occur.

For what it is w

Answer 1

I recently wrote a module to do this, because I wasn't satisfied with the numerous diffing modules I found (I listed a bunch of the most popular modules and why they weren't acceptable in the readme of my module). Its called odiff: https://github.com/Tixit/odiff . Here's an example:

var a = [{a:1,b:2,c:3},              {x:1,y: 2, z:3},              {w:9,q:8,r:7}]
var b = [{a:1,b:2,c:3},{t:4,y:5,u:6},{x:1,y:'3',z:3},{t:9,y:9,u:9},{w:9,q:8,r:7}]

var diffs = odiff(a,b)

/* diffs now contains:
[{type: 'add', path:[], index: 2, vals: [{t:9,y:9,u:9}]},
 {type: 'set', path:[1,'y'], val: '3'},
 {type: 'add', path:[], index: 1, vals: [{t:4,y:5,u:6}]}
]
*/