Correct way to push in string[] react+typescript

Question

What is the correct way to push elements in string[] in react? I'm getting Type '(string | string[])[]' is not assignable to type 'string[]'

This is a playground link : Here

Am I not initializing the string correctly?

P Savva · Accepted Answer · 2022-05-04 20:38:18Z

1

You appear to be missing a square bracket in your example code:

| null>(['')

Should be

| null>([''])

Change line 8 so you're also spreading the second array, and it fixes your problem:

setArr((prev: string[])=> [...prev, ...tempArr])

answered May 4, 2022 at 20:29

P Savva

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1 Comment

Yeah, but I still get the same error as described above