What is the method for accessing a JSON key containing a hyphen?

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To access a JSON key containing a hyphen, you can use either dot notation or bracket notation. With dot notation, you simply replace the hyphen with an underscore:

myJsonKey.mySubKey // accessing with dot notation

The above example assumes that the JSON object has a key named "myJsonKey" and a sub-key named "my-sub-key". With dot notation, we replace the hyphen with an underscore:

myJsonKey.my_sub_key // accessing with dot notation

Alternatively, you can use bracket notation and include the key inside quotes:

myJsonKey["my-sub-key"] // accessing with bracket notation