JsonVariantConst
Description
JsonVariantConst is a read-only version of JsonVariant.
Like JsonVariant, it points to a variant in a JsonDocument.
The difference is that JsonVariantConst provided only read access to the variant and doesn’t allow modifying the value.
It’s also twice smaller because it doesn’t contain a pointer to the memory pool.
Use this JsonVariantConst in place of JsonVariant when you want to enforce immutability or when you work with a const JsonDocument.
Member functions
as<T>()containsKey()isNull()is<T>()nesting()operator|operator[]size()
JsonVariantConst also support the comparison operators ==, !=, <, <=, >, and >=.
