JsonVariant::operator[]
Description
JsonVariant::operator[] gets, replaces, adds a value in the JsonVariant.
Depending on the argument type the JsonVariant can be used like a JsonArray or a JsonObject.
All values are stored by copy, except string literals which are stored by address.
The string copy policy has changed in ArduinoJson 7.3.
Signatures
// mimics a JsonArray
ElementProxy operator[](size_t index) const;
// mimics a JsonObject
MemberProxy operator[](const char (&key)[N]) const;
MemberProxy operator[](const char* key) const;
MemberProxy operator[](const String& key) const;
MemberProxy operator[](const std::string& key) const;
MemberProxy operator[](string_view key) const;
MemberProxy operator[](const __FlashStringHelper* key) const;
Arguments
index: the index in the JsonArray.
key: the key in the JsonObject
Return value
A proxy class that allows using the JsonVariant as an array or a dictionary. If this concept of proxy class is unfamiliar to you, just think of a JsonVariant instead.
Please see JsonArray::operator[] and JsonObject::operator[] for explanations about ElementProxy and MemberProxy.
