Function reverseParams

test/angular/1.4/angular.js:384–386

* when using forEach the params are value, key, but it is often useful to have key, value. * @param {function(string, *)} iteratorFn * @returns {function(*, string)}

(iteratorFn)

 * @returns {function(*, string)}
 */
function reverseParams(iteratorFn) {
  return function(value, key) {iteratorFn(key, value);};
}

/**
 * A consistent way of creating unique IDs in angular.