* Generate a key string that identifies a component within a set. * * @param {*} component A component that could contain a manual key. * @param {n

* Checks if an event is supported in the current execution environment. * * NOTE: This will not work correctly for non-generic events such as `chang

* 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.