Event delegation yana nufin danganta daya mai sauraro ga gadankiya gida maimakon daya mai sauraro don kowace ta kasuwa, da amfani da event bubbling don gane wacce ta kasuwa da abin da aka yi shi (ta event.target).
.().(
li.(, handle));
.().(, {
li = e..();
(li) (li..);
});
Lokacin da ka danna <li>, abin yaci-yaci ya bubbula sama: li → ul → body → document. Mai sauraro akan <ul> saboda haka yana karbi danna daga duk wacce <li> ta kasuwa, da e.target yana gaya maka abin da aka danna. closest("li") yana tafiya sama daga jiya don nemo abin da aka niyata (yana sarrafa danna akan abubuwan ciki kuma).
<li> da aka ƙara jiya ba ya buƙa sabon mai sauraro, saboda gariba ya tafi ya ɗauke shi.Ya dogara kan bubblin, don haka ba ya aiki ne don abubuwan jinkiri da ba bubbula ba (focus, blur — yi amfani da focusin/focusout a maimakon). Daidai wannan hanya ce React ta amfani da ita ciki ciki (daya mai sauraro tushe don duk app).