headIn (method)

headIn

• headIn<R>(): OptSafe<R>

• Get a first item of an array or a first character of a string wrapped in Opt.

  Type Parameters

  • R extends unknown

  Returns OptSafe<R>

  Example

  opt([1, 2, 3]).headIn() // Some(1)
  opt([]).headIn() // None
  opt(null).headIn() // None
  opt('Palico').headIn() // Some('P')
  

  See

  head