/Javascript/React/How to add array data on state react

How to add array data on state react

this.setState({ myArray: [...this.state.myArray, 'new value'] }) //simple value
this.setState({ myArray: [...this.state.myArray, ...[1,2,3] ] }) //another array

Source: stackoverflow.com

Add new array at the back of react state

this.setState(prevState => ({
  myArray: [...prevState.myArray, "new value"]
}))

Source: stackoverflow.com

Add new array at the back of react state

this.setState(prevState => ({
  myArray: ["new value", ...prevState.myArray]
}))

Source: stackoverflow.com

Add new array at the back of react state

this.setState(prevState => ({
  myArray: [ {"name": "object"}, ...prevState.myArray]
}))

Source: stackoverflow.com

How to add array data on state react

// Using hooks

const [array, setArray] = useState([1, 2, 3])

setArray(prevArray => [...prevArray, 4]); // -> [1, 2, 3, 4]

Similar codes

0 vote383 views1 answer
`ForwardRef(ListboxComponent)`, expected a ReactNode. at ListboxComponent
Javascript React
6 votes367 views2 answers
React native disable the text input
Javascript React
0 vote344 views1 answer
React js error stackoverflaw
Javascript React
0 vote333 views1 answer
Exit ios inspector in react native
Javascript React
1 vote325 views1 answer
React native blur view crashing on android
Javascript React
0 vote331 views1 answer
Access to XMLHttpRequest has been blocked by CORS policy React
Javascript React
68 votes368 views4 answers
Inline style react
Javascript React
0 vote343 views1 answer
React component in for loop
Javascript React
0 vote358 views1 answer
How can we update time in react js
Javascript React
2 votes337 views2 answers
React detect screen size
Javascript React