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push data to state array react usestate

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Gotifly answered on June 2, 2020 Popularity 10/10 Helpfulness 4/10

answer push data to state array react usestate

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push data to state array react usestate

Comment

const {useState, useCallback} = React;
function Example() {
    const [theArray, setTheArray] = useState([]);
    const addEntryClick = () => {
        setTheArray(oldArray => [...oldArray, `Entry ${oldArray.length}`]);
    };
    return [
        <input type="button" onClick={addEntryClick} value="Add" />,
        <div>{theArray.map(entry =>
          <div>{entry}</div>
        )}
        </div>
    ];
}

ReactDOM.render(
    <Example />,
    document.getElementById("root")
);

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: stackoverflow.com

Tags: javascript push state use-state

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Contributed on Jul 27 2022

Gotifly

0 Answers Avg Quality 2/10

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react push array in useState

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const [state, setState] = useState([]);

//push new array
setState(prevState => [...prevState, ...array]);

//push new item
setState(prevState => [...prevState, item]);

//returning other state val beside stateItem1
setState(prevState => {
  	return{
   		...prevState,
    	stateItem1 : stateVal1
  	}
})

//using class function
this.setState({
  	data: [...this.state.data, ...array],
})

Popularity 10/10 Helpfulness 9/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on May 09 2023

iF n OnLy iF

0 Answers Avg Quality 2/10

push state array react

Comment

setArray(oldArray => [...oldArray,newValue] );

Popularity 10/10 Helpfulness 7/10 Language javascript

Source: stackoverflow.com

Tags: javascript j

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Contributed on Aug 07 2021

Long Lizard

0 Answers Avg Quality 2/10

usestate array push

Comment

setTheArray([...theArray, newElement]);

Popularity 10/10 Helpfulness 5/10 Language whatever

Source: stackoverflow.com

Tags: array-push a

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Contributed on Jun 02 2020

Disgusted Dolphin

0 Answers Avg Quality 2/10

push values to state array class react

Comment

this.setState(prevState => ({
  arrayvar: [...prevState.arrayvar, newelement]
}))

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: stackoverflow.com

Tags: class clas

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Contributed on Feb 06 2021

Bewildered Booby

0 Answers Avg Quality 2/10

Correct way to push into state array

Comment

stackoverflow:https://stackoverflow.com/questions/37435334/correct-way-to-push-into-state-array

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on Aug 29 2022

Surbhi Kumari

0 Answers Avg Quality 2/10

push data to state array react usestate

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