/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 vote179 views1 answer
Reactjs import electron
Javascript React
0 vote196 views1 answer
React sub count
Javascript React
0 vote197 views1 answer
React simple typewriter
Javascript React
0 vote209 views1 answer
Storybook react router
Javascript React
-1 vote185 views1 answer
How to use error in react hook form
Javascript React
0 vote181 views1 answer
Deploy react to azure : web.config
Javascript React
0 vote196 views1 answer
Use font awesome in react native
Javascript React
2 votes222 views1 answer
React native open email client expo
Javascript React
4 votes191 views2 answers
HandleClick react
Javascript React
0 vote202 views2 answers
Module not found: Error: Can't resolve 'crypto' react
Javascript React