define: DUK_USE_HSTRING_EXTDATA
introduced: 1.1.0
default: false
tags:
  - memory
description: >
  Enable support for external strings.  An external string requires a Duktape
  heap allocation to store a minimal string header, with the actual string
  data being held behind a pointer (similarly to how dynamic buffers work).

  This option is needed to use DUK_USE_EXTSTR_INTERN_CHECK and/or
  DUK_USE_EXTSTR_FREE.