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lynx_value_has_property

Introduction

Check if the object passed in has the named property.

Syntax

lynx_api_status lynx_value_has_property(lynx_api_env env,
                                        lynx_value object,
                                        const char* utf8name,
                                        bool* result);

Parameters

KeyDescription
[in] envThe environment in which lynx value runs, typically nullptr.
[in] objectThe object to query.
[in] utf8nameThe name of the property whose existence to check.
[out] resultWhether the property exists on the object or not.

Return Value

Returns lynx_api_ok if the API succeeded. Returns lynx_api_map_expected if the types do not match.

Example

lynx_value map_value;
lynx_value_create_map(env, &map_value);
lynx_value v1;
lynx_value_create_int32(env, 10, &v1);
lynx_value_set_named_property(env, map_value, "v1", v1);
bool has_property;
lynx_value_has_property(env, map_value, "v1", &has_property);
// do something
lynx_value_remove_reference(env, map_value, NULL);
Except as otherwise noted, this work is licensed under a Creative Commons Attribution 4.0 International License, and code samples are licensed under the Apache License 2.0.