* Returns a function to use in pseudos for positionals * @param {Function} fn

* Traverses children that are typically specified as `props.children`, but * might also be specified through attributes: * * - `traverseAllChildren

* Accumulates items that must not be null or undefined into the first one. This * is used to conserve memory by avoiding array allocations, and thus

* Mark a component as needing a rerender, adding an optional callback to a * list of functions which will be executed once the rerender occurs.

* @param {array} arr an "accumulation" of items which is either an Array or * a single item. Useful when paired with the `accumulate` module. This is

* @param {DOMElement|DOMDocument} container DOM element that may contain * a React component * @return {?*} DOM element that may have the reactRoot

* inlined Object.is polyfill to avoid requiring consumers ship their own * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_O

* Flatten a children object (typically specified as `props.children`) and * return an array with appropriately re-keyed children. * * See https://f

* Try to determine the default display value of an element * @param {String} nodeName

* Escape a regular expression string. * * @param {string} str * @return {string}

* Escapes text to prevent scripting attacks. * * @param {*} text Text value to escape. * @return {string} An escaped string.

* `charCode` represents the actual "character code" and is safe to use with * `String.fromCharCode`. As such, only keys that correspond to printable

* Gets the target node from a native browser event by accounting for * inconsistencies in browser DOM APIs. * * @param {object} nativeEvent Native

* Returns the iterator method function contained on the iterable object. * * Be sure to invoke the function with the iterable as context: * *

* Helper to nullify syntheticEvent instance properties when destructing * * @param {object} SyntheticEvent * @param {String} propName * @retur

* Attempts to determine the correct vendor prefixed event name. * * @param {string} eventName * @returns {string}

* True if the supplied DOM node is a valid node element. * * @param {?DOMElement} node The candidate DOM node. * @return {boolean} True if the DOM

* Generate a mapping of standard vendor prefixes using the defined style property and event name. * * @param {string} styleProp * @param {string} e

* Mixin helper which handles policy validation and reserved * specification keys when building React classes.

* Escapes attribute value to prevent scripting attacks. * * @param {*} value Value to escape. * @return {string} An escaped string.

* Performs equality by iterating through keys on an object and returning false * when any key has values which are not strictly equal between the arg

* @param {ReactDOMComponent} inst * @param {boolean} multiple * @param {*} propValue A stringable (with `multiple`, a list of stringables). * @priv