Underscore.js 1.7の使い方 Collections編 isEqual

var r = document.getElementById("r");
var orig  = {name: 'sato'};
var clone = {name: 'sato'};
console.log(orig == clone);
// => false
console.log(orig === clone);
// => false
r.innerHTML = _.isEqual(orig, clone);
// => true