artesanias/node_modules/underscore/amd/every.js

define(['./keys', './_cb', './_isArrayLike'], function (keys, _cb, _isArrayLike) {

  // Determine whether all of the elements pass a truth test.
  function every(obj, predicate, context) {
    predicate = _cb(predicate, context);
    var _keys = !_isArrayLike(obj) && keys(obj),
        length = (_keys || obj).length;
    for (var index = 0; index < length; index++) {
      var currentKey = _keys ? _keys[index] : index;
      if (!predicate(obj[currentKey], currentKey, obj)) return false;
    }
    return true;
  }

  return every;

});