android - Promises in AsyncStorage from React Native -

wrinting lttle wrapper around asyncstorage react native, have little problem getallkeys function.

what wrong in snipped, if want retrive values?

getall: function(){     var items = ["hh"];     asyncstorage.getallkeys()         .then( ks => {             ks.foreach( k => {             asyncstorage.getitem(k)                 .then( v => items.push(v)); //console.log(k, v));         });         });         return items;   }, 

thanks much

you returning items synchronously, .getallkeys , .getitems return promises, highly asynchronous

using promise.all wait asyncstorage.getitem complete, code can written follows

getall: () =>      promise.all(asyncstorage.getallkeys()         .then(ks =>              ks.map(k =>                  asyncstorage.getitem(k)             )         )     ) , 

usage:

.getall() .then(items =>      // items  ) .catch(err =>      // handle errors ); 

to explain error in comment - if use {} in arrow function, must use return return value

getall: () => promise.all(asyncstorage.getallkeys().then(ks => {     console.log(ks);     // return here     return ks.map(k => {          console.log(k);         // return here         return asyncstorage.getitem(k);     }) })),