* Merge two option objects into a new one. * Core utility used in both instantiation and inheritance.

* Ensure a function is called only once.

* Convert an input value to a number for persistence. * If the conversion fails, return original string.

* Recursively traverse an object to evoke all converted * getters, so that every nested property inside the object * is collected as a "deep" de

* Computed the boundaries limits and return them * @method * @memberof Popper.Utils * @param {HTMLElement} popper * @param {HTMLElement} r

* Get bounding client rect of given element * @method * @memberof Popper.Utils * @param {HTMLElement} element * @return {Object} client re

* Returns the parentNode or the host of the element * @method * @memberof Popper.Utils * @argument {Element} element * @returns {Element}

* Get the prefixed supported property name * @method * @memberof Popper.Utils * @argument {String} property (camelCase) * @returns {String

* Tells if a given input is a number * @method * @memberof Popper.Utils * @param {*} input to check * @return {Boolean}

* Query an element selector if it's not an element already.

* Resolve an asset. * This function is used because child instances need access * to assets defined in its ancestor chain.

* Runtime helper for resolving raw children VNodes into a slot object.

* Set the style to the given popper * @method * @memberof Popper.Utils * @argument {Element} element - Element to apply the style to * @ar

* Convert an Array-like object to a real Array.