JsonElement::has(const std::string_view key) const
Function Usage
Returns true if a JsonElement node is not null and has a matching key, or otherwise, returns false.
Function Syntax
bool JsonElement::has(const std::string_view key) const;
Parameters
Parameter |
Description |
Value Range |
Input/Output |
|---|---|---|---|
key |
Key of the node to be queried. |
Valid string |
Input |
Return Value
- Success: true is returned, indicating that the node exists.
- Failure: false is returned, indicating that the node is null or does not exist.
Parent topic: Function Syntax