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El valor no cambia después de la actualización

Tengo el siguiente código:

 type myTuple = [string, (value:string) => void] function setState(v: string) : myTuple { let myState:string = v; return [ myState, (a) => myState = a ] } const [val,setVal] = setState('value1'); console.log(val); setVal('Change'); console.log(val);

Espero que val se cambie a "Change" , pero en su lugar permanece "value1" después del segundo console.log .

Sin embargo, encontré una manera de hacerlo funcionar:

 type myTuple = [() => string, (value:string) => void ] function setState(v: string) : myTuple { let myState:string = v; return [ () => myState, (a) => myState = a ] } const [val,setVal] = setState('value1'); console.log(val()); setVal('AAP'); console.log(val());

¿Por qué funciona esto?

about 4 years ago · Juan Pablo Isaza
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