Could you write me a React hook to merge a new state object with the current state object? And additionally to allow a function as input to act on the old state and then merge the result?
system
kya aap mujhe vartmaan state object ke saath ek nai state object ko marz karne ke liye ek riect hook likh sakate hai?or iske alaava ek fnction ko puraane rajya par kaary karne ke liye input ke rup main anumati dene ke liye or phir parinaam marz karen?
user
zarur!yahan ek riect hook he jise `usemergestate 'kaha jaataa he jo ek nai rajya vastu ko vartmaan sthiti ke saath vilay karne kii anumati detaa he.yah vilay se pehle puraani sthiti ko sanshodhit karne ke liye ek fnction ko bhi sweekaar karata he:

`` `
aayaat {usestate, usecallback} 'riect' se;

tip state = {[kunjee: string]: koi bhi};
prakaar mergestateFunction = (newState: aanshik <tate> | ((prevstate: state) => aanshik <rajya>)) => shunya;
tip usemergestate = [rajya, mergestatefunction];

const usemergestate = (initionstate: state = {}): usemergestate => {{
  const [rajya, setstate] = usestate <tate> (initionstate);

  const mergestate = usecallback <mergestatefunction> (newstate => {{
    setState (prevstate => {
      if (typeof newstate === 'fnction') {
        vaapasi {... privastate, ... newstate (prevstate)};
      } anya {
        ritern {... privastate, ... newstate};
      }
    });
  }, []);

  vaapasi [rajya, merjastate];
};

difolt difolt usemergestate;
`` `

yah yaa to pradaan kii gai rajya vastu yaa ek khaali object kaa upyog karke `usestate` ke saath rajya ko inishilise karata he.yah punah-rendorrs main ek sthir sandarbh banaae rakhane ke liye `usecallback` kaa upyog karata he.
yah jaanchataa he ki `newstate` char ek fnction he yaa nahin or uske anusaar aage badhata he:
1. yadi yah ek fnction he, to yah is fnction ke input ke rup main pichhali sthiti kaa upyog karata he or phir parinaam ko vilay kar detaa he.
2. yadi yah ek fnction nahin he, to yah ise pichley rajya ke saath vilay kar detaa he jaisaa ki he.
assistant
<|system|>
</s>
<|user|>
kya aap mujhe vartmaan state object ke saath ek nai state object ko marz karne ke liye ek riect hook likh sakate hai?or iske alaava ek fnction ko puraane rajya par kaary karne ke liye input ke rup main anumati dene ke liye or phir parinaam marz karen?</s>
<|assistant|>
zarur!yahan ek riect hook he jise `usemergestate 'kaha jaataa he jo ek nai rajya vastu ko vartmaan sthiti ke saath vilay karne kii anumati detaa he.yah vilay se pehle puraani sthiti ko sanshodhit karne ke liye ek fnction ko bhi sweekaar karata he:

`` `
aayaat {usestate, usecallback} 'riect' se;

tip state = {[kunjee: string]: koi bhi};
prakaar mergestateFunction = (newState: aanshik <tate> | ((prevstate: state) => aanshik <rajya>)) => shunya;
tip usemergestate = [rajya, mergestatefunction];

const usemergestate = (initionstate: state = {}): usemergestate => {{
  const [rajya, setstate] = usestate <tate> (initionstate);

  const mergestate = usecallback <mergestatefunction> (newstate => {{
    setState (prevstate => {
      if (typeof newstate === 'fnction') {
        vaapasi {... privastate, ... newstate (prevstate)};
      } anya {
        ritern {... privastate, ... newstate};
      }
    });
  }, []);

  vaapasi [rajya, merjastate];
};

difolt difolt usemergestate;
`` `

yah yaa to pradaan kii gai rajya vastu yaa ek khaali object kaa upyog karke `usestate` ke saath rajya ko inishilise karata he.yah punah-rendorrs main ek sthir sandarbh banaae rakhane ke liye `usecallback` kaa upyog karata he.
yah jaanchataa he ki `newstate` char ek fnction he yaa nahin or uske anusaar aage badhata he:
1. yadi yah ek fnction he, to yah is fnction ke input ke rup main pichhali sthiti kaa upyog karata he or phir parinaam ko vilay kar detaa he.
2. yadi yah ek fnction nahin he, to yah ise pichley rajya ke saath vilay kar detaa he jaisaa ki he.</s>
