Property 'shouldComponentUpdate' is not assignable to the same property

Question

I got an error in TypeScript using shouldComponentUpdate:

Property 'shouldComponentUpdate' in type 'Hello' is not assignable to the same property in base type Component<IProps, any, any>.

in Component:

import React, { Component } from 'react'

class Hello extends Component<IProps, any> {
  shouldComponentUpdate(nextProps: IProps) { // error here
    console.log(nextProps, 'nextProps')
  }

  ....// some code
}

Can someone explain me what I'm doing wrong?

Answer 1

There is a little bit annoying to use React with TypeScript, because the last one today is does not contains all required error describing tips. So, probably an error in your case is binded with non-finished return call from shouldComponentUpdate method.

Try next and see what will happen:

  shouldComponentUpdate(nextProps: IProps) { // error here
    console.log(nextProps, 'nextProps')
    return true
  }