Show the controller on screen. It will go away automatically after 3 seconds of inactivity.

* Replace target with el * * @param {Element} target * @param {Element} el

* Mix properties into target object. * * @param {Object} to * @param {Object} from

* Get and remove an attribute from a node. * * @param {Node} node * @param {String} _attr

* Define a property. * * @param {Object} obj * @param {String} key * @param {*} val * @param {Boolean} [enumerable]

* Set a prop's initial value on a vm and its data object. * * @param {Vue} vm * @param {Object} prop * @param {*} value

* Parse a directive value and extract the expression * and its filters into a descriptor. * * Example: * * "a + 1 | uppercase" will yie

* Remove el from DOM * * @param {Element} el

* Remove class with compatibility for IE & SVG * * @param {Element} el * @param {String} cls

Set summary for this step. If you set a null value, it will hide the summary view. @param summary The summary should be set or null

* Check and convert possible numeric strings to numbers * before setting back to data * * @param {*} value * @return {*|Number}

* Insert el before target * * @param {Element} el * @param {Element} target

* Simple bind, faster than native * * @param {Function} fn * @param {Object} ctx * @return {Function}

* Get an attribute with colon or v-bind: prefix. * * @param {Node} node * @param {String} name * @return {String|null}

* Parse an expression into re-written getter/setters. * * @param {String} exp * @param {Boolean} needSet * @return {Function}

* Process the template option and normalizes it into a * a DocumentFragment that can be used as a partial or a * instance template. * * @p

* Push a directive. * * @param {String} dirName * @param {Object|Function} def * @param {Array} [interpTokens]

The method prints the log, level error. @param tag the tag of the class. @param msg the message to print.