uce/site/doc/pages/2_DValue_has.txt
2026-06-16 12:21:31 +00:00

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:sig
bool DValue::has(String s) const
:params
s : child key to test
return value : true when the dereferenced value is map-shaped and contains the key
:see
>types
0_DValue
2_DValue_key
2_DValue_get_by_path
:content
Checks for a child key without creating it. Returns false for scalars and missing keys.
:example
DValue user;
user["name"] = "Ada";
print(user.has("name") ? "yes\n" : "no\n");