inspect-jsdeep-equal 
Node's assert.deepEqual() algorithm as a standalone module, that also works in browser environments.
It mirrors the robustness of node's own assert.deepEqual and is robust against later builtin modification.
example
var equal = require('deep-equal');
console.dir([
equal(
{ a : [ 2, 3 ], b : [ 4 ] },
{ a : [ 2, 3 ], b : [ 4 ] }
),
equal(
{ x : 5, y : [6] },
{ x : 5, y : 6 }
)
]);methods
var deepEqual = require('deep-equal')deepEqual(a, b, opts)
Compare objects a and b, returning whether they are equal according to a recursive equality algorithm.
If opts.strict is true, use strict equality (===) to compare leaf nodes.
The default is to use coercive equality (==) because that's how assert.deepEqual() works by default.
install
With npm do:
npm install deep-equaltest
With npm do:
npm test