function throttle(func, wait, options) {
      var leading = true,
          trailing = true;

      if (!isFunction(func)) {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      if (options === false) {
        leading = false;
      } else if (isObject(options)) {
        leading = 'leading' in options ? !!options.leading : leading;
        trailing = 'trailing' in options ? !!options.trailing : trailing;
      }
      debounceOptions.leading = leading;
      debounceOptions.maxWait = +wait;
      debounceOptions.trailing = trailing;
      return debounce(func, wait, debounceOptions);
    }
Creates a function that only invokes `func` at most once per every `wait`
milliseconds. The created function comes with a `cancel` method to cancel
delayed invocations. Provide an options object to indicate that `func`
should be invoked on the leading and/or trailing edge of the `wait` timeout.
Subsequent calls to the throttled function return the result of the last
`func` call.

**Note:** If `leading` and `trailing` options are `true`, `func` is invoked
on the trailing edge of the timeout only if the the throttled function is
invoked more than once during the `wait` timeout.

See [David Corbacho's article](http://drupalmotion.com/article/debounce-and-throttle-visual-explanation)
for details over the differences between `_.throttle` and `_.debounce`.

@static
@memberOf _
@category Function
@param {Function} func The function to throttle.
@param {number} wait The number of milliseconds to throttle invocations to.
@param {Object} [options] The options object.
@param {boolean} [options.leading=true] Specify invoking on the leading
 edge of the timeout.
@param {boolean} [options.trailing=true] Specify invoking on the trailing
 edge of the timeout.
@returns {Function} Returns the new throttled function.
@example

// avoid excessively updating the position while scrolling
jQuery(window).on('scroll', _.throttle(updatePosition, 100));

// invoke `renewToken` when the click event is fired, but not more than once every 5 minutes
var throttled =  _.throttle(renewToken, 300000, { 'trailing': false })
jQuery('.interactive').on('click', throttled);

// cancel a trailing throttled call
jQuery(window).on('popstate', throttled.cancel);