Function objectsEqual

test/unit/static/js/assertions.js:26–76

(obj1, obj2)

  // Utility for deep equality testing of objects
  function objectsEqual (obj1, obj2) {
    /* jshint eqeqeq: false */

    // Check for undefined or null
    if (isUndefinedOrNull(obj1) || isUndefinedOrNull(obj2)) {
      return false;
    }

    // Object prototypes must be the same
    if (obj1.prototype !== obj2.prototype) {
      return false;
    }

    // Handle argument objects
    if (isArgumentsObject(obj1)) {
      if (!isArgumentsObject(obj2)) {
        return false;
      }
      obj1 = Array.prototype.slice.call(obj1);
      obj2 = Array.prototype.slice.call(obj2);
    }

    // Check number of own properties
    var obj1Keys = getObjectKeys(obj1);
    var obj2Keys = getObjectKeys(obj2);
    if (obj1Keys.length !== obj2Keys.length) {
      return false;
    }

    obj1Keys.sort();
    obj2Keys.sort();

    // Cheap initial key test (see https://github.com/joyent/node/blob/master/lib/assert.js)
    var key, i, len = obj1Keys.length;
    for (i = 0; i < len; i += 1) {
      if (obj1Keys[i] != obj2Keys[i]) {
        return false;
      }
    }

    // Expensive deep test
    for (i = 0; i < len; i += 1) {
      key = obj1Keys[i];
      if (!isDeepEqual(obj1[key], obj2[key])) {
        return false;
      }
    }

    // If it got this far...
    return true;
  }

  // Utility for deep equality testing
  function isDeepEqual (actual, expected) {