Javascript-react-redux

Which of the following is the correct data flow sequence of Reuxflux concept?

• A

• B

• C

• D

.............. helps react for keeping their data unidirectional.

• JSX

• State

• Virtual DOM

• Props

Which prototype function cannot be used in a pure function

• Slice

• Concat

• Push

• Map

What will happend when you don't specify the second parameter in an Effect

• It gets never triggered

• It gets triggered on every render

• It gets triggered only on first render

• Gives as Exception

const [x, y] = useState(0) -> what is the y

• Setter function

• Getter function (state variable)

What is the output

• [[1, 2, 3, 4, 5]]

• [1, 2, 3, 4, 5]

• 1

• [1]

What is the output

• 10, 10

• 10, 11

• 11, 11

• 11, 12

What is the output

• []

• [null, null, null]

• [undefined, undefined, undefined]

• [ 3 x empty ]

console.log(typeof typeof 1)

• "number"

• "string"

• "object"

• "undefined"

What is the event.target when clicking the button?

• Outer <div>

• Inner <div>

• <button>

• All elements together