CODEWITHSUNDEEP
reactjsreact-hooksuse-state
Tips and Tricks Of Chess
Tips and Tricks Of Chess

Reputation: 55

Difficulty understanding 'useState' in 'react-redux'

what is the purpose of useState?

what is it doing ? what is the value '0'?

what does useState function returns ?

can we write anything in place of currentId and setCurrentId?

i am from java language . this whole syntax looks very weird . generally we write like this => int a = sum(b,c); in java but in this case we have square brackets with two variables in it . what kind of thing is this ?

const [currentId, setCurrentId] = useState(0);

Upvotes: 0

Views: 63

Answers (1)

verybaddeveloper
verybaddeveloper

Reputation: 269

useState is not from react-redux, but React itself, it's called a hook

What you are doing is you are initializing a value, called currentId with the value 0. setCurrentId is the function that you would use to update the state. Yes you can write anything you want instead of those, for example

const [number, setNumber] = useState(0);
if(condition) setNumber(1)

Upvotes: 1

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