The 'type' property is not found on the 'never' type

There seems to be a typescript error showing up as

Error: Property 'type' does not exist on type 'never'
in the following code snippet:

export const getSomething = (actionLog: [] | undefined) => {
  console.info(actionLog[length - 1].type)
}

Can anyone help identify and explain what is causing this issue?

Answer №1

A simple fix is to specify a type for the 'type' property:

export const retrieveInfo = (dataLog: {type: string}[] | undefined) => {
  console.info(dataLog[length - 1].type)
}

UPDATED SOLUTION:

export const retrieveInfo = (dataLog: {type: string}[]) => {
  if (dataLog && dataLog[0]) {
    console.info(dataLog[length - 1].type)
  }
}

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