.push( ) is not updating the variable

SAMER SAEID answered on May 12, 2022 Popularity 1/10 Helpfulness 1/10

answer .push( ) is not updating the variable

related .push( ) is not updating the variable

.push( ) is not updating the variable

Comment

const datas=[]; //move your `datas` to the global scope

export default function App() {
 const [data,setData]= useState([]);
 const [activity, setActivity]= useState([])
 const [name, setName] = useState("")

 
 useEffect(()=>{
  // handlePress()
 }, [setData, setName])

 const rand= Math.floor(Math.random(1,5)*4)+1
 const events=["Event A","Event B","Event C","Event D","Event E"]

 const handlePress=(day)=>{
   setData(day); //`data` will be changed later
   setName(`${events[rand]}`)
   datas.push(day); //push `day` directly instead of data
   console.log(datas);
 }
  return (
    <div className="App">
      <Calendar 
        onDayPress={day => {
          {handlePress(day)}
        }}
        
      />
      
    </div>
  );
}

Popularity 1/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: javascript updating

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Contributed on May 12 2022

SAMER SAEID

0 Answers Avg Quality 2/10

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.push( ) is not updating the variable

Comment

const handlePress=(day)=>{
   setData(day); //`day` is set here but not applied immediately
   setName(`${events[rand]}`)
   datas.push(data); //data is the previous data, not `day`
   console.log(datas);
 }

Popularity 1/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: javascript updating

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Contributed on May 12 2022

SAMER SAEID

0 Answers Avg Quality 2/10

.push( ) is not updating the variable

Comment

//whenever `name` or `data` change, `useEffect` will be triggered
useEffect(()=>{
  //TODO: Do your logic here
 }, [data, name])

Popularity 1/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: updating javascript

Link to this answer
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Contributed on May 12 2022

SAMER SAEID

0 Answers Avg Quality 2/10

.push( ) is not updating the variable

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