=proto
const char *duk_hex_encode(duk_context *ctx, duk_idx_t index);

=stack
[ ... val! ... ] -> [ ... hex_val! ... ]

=summary
<p>Coerces an arbitrary value into a buffer and then encodes the result
into hex as an in-place operation.  Returns pointer to the resulting
string for convenience.</p>

<div class="note">
Coercing to a buffer first coerces a non-buffer value into a string, and
then coerces the string into a buffer.  The resulting buffer contains the
string in CESU-8 encoding.
</div>

=example
duk_push_string(ctx, "foo");
printf("hex encoded: %s\n", duk_hex_encode(ctx, -1));

/* Output:
 * hex encoded: 666f6f
 */

=tags
codec

=seealso
duk_hex_decode

=introduced
1.0.0