name: duk_is_object_coercible

proto: |
  duk_bool_t duk_is_object_coercible(duk_context *ctx, duk_idx_t index);

stack: |
  [ ... val! ... ]

summary: |
  <p>Returns 1 if value at <code>index</code> is object coercible, as defined in
  <a href="http://www.ecma-international.org/ecma-262/5.1/#sec-9.10">CheckObjectCoercible</a>,
  otherwise returns 0.  If <code>index</code> is invalid, also returns 0.</p>

  <p>All Ecmascript types are object coercible except <code>undefined</code> and
  <code>null</code>.  The custom buffer and pointer types are object coercible.</p>

example: |
  if (duk_is_object_coercible(ctx, -3)) {
      /* ... */
  }

tags:
  - stack
  - object

introduced: 1.0.0