asp.net mvc - MVC controller returns JSON. But to where? -

i'm new mvc. mvc controller returns viewresult. understand view has same action name. let's "dosomething" action goes "dosomething" view. if controller returns json, returned to? going page action method activated from? let's "index" vew "dosomething" action. if "dosomething" controller returns json, json go "index" view? working out returning json , jquery call ajax, confused. thanks.

if action method returns json, view doesn't involved. in cases, action method of controller returns response stream. notice return statement below. it's calling view first. think of method call. , whatever view is, returned.

public actionresult dosomething() {      return view(); } 

in json's case notice view stays out of it:

public jsonresult dosomething() {      var jsondata = {      "name"    : "mike",      "address" : "home",      "gender"  : "male"     };      return json(jsondata, jsonrequestbehavior.allowget); } 

jsondata caught javascript.