Function flattenDeep

packages/util/src/logger/index.js:432–441

(array)

const joinTextTokens = (textTokens) => {
  // Function to deeply flatten an array
  const flattenDeep = (array) => {
    // Make sure the input is actually an array; otherwise, wrap it in one
    if (!Array.isArray(array)) return [array]

    return array.reduce(
      (acc, val) =>
        Array.isArray(val) ? acc.concat(flattenDeep(val)) : acc.concat(val),
      [],
    )
  }

  // Make sure the initial input is treated as an array if it is not
  const flattened = flattenDeep(