deep check for equality
var deepEquals = require("@nathanfaucett/deep_equals");
deepEquals(0, 0) === true;
deepEquals(0, 1) === false;
deepEquals("string", "string") === true;
deepEquals("string", "diff_string") === false;
deepEquals([0, 1, 2], [0, 1, 2]) === true;
deepEquals([0, 1, 2], [0, 1, 2, 3]) === false;
deepEquals([0, 1, 2], [0, 1]) === false;
deepEquals({a: 0, b: 1}, {a: 0, b: 1}) === true;
deepEquals({a: 0, b: 1}, {a: 0, b: 1, c: 2}) === false;
deepEquals({a: 0, b: 1}, {a: 0})