Hegel: Type "[T]" is incompatible with type "Array<T>"

[thecotne]

function ensureArray<T>(value: T | Array<T> | null | undefined): Array<T> {
  if (value == null) {
    return []
  }

  if (typeof value === 'object' && value instanceof Array) {
    return value
  } else {
    return [value]// Type "[T]" is incompatible with type "Array<T>"
  }
}

try

[thecotne]

surprisingly (for me) this works

function ensureArray<T>(value: T): Array<T> {  
  return [value]
}

try

[ikabirov]

Hmmm, it's works too

function ensureArray<T>(value: T | Array<T> | null | undefined): Array<T> {
  if (value == null) {
    return []
  }

  if (value instanceof Array) {
    return value
  } else {
    value
    return [value]
  }
}

try