Function bindKey

MathBox/mathbox-bundle.js:40380–40384

* Creates a function that, when called, invokes the method at `object[key]` * and prepends any additional `bindKey` arguments to those provided to the bound * function. This method differs from `_.bind` by allowing bound functions to * reference methods that will be redefined or don't

(object, key)

     * // => 'hiya fred!'
     */
    function bindKey(object, key) {
      return arguments.length > 2
        ? createWrapper(key, 19, slice(arguments, 2), null, object)
        : createWrapper(key, 3, null, null, object);
    }

    /**
     * Creates a function that is the composition of the provided functions,