Is there any practical reason to use quoted strings for JSON keys?
问题 According to Crockford\'s json.org, a JSON object is made up of members , which is made up of pairs . Every pair is made of a string and a value , with a string being defined as: A string is a sequence of zero or more Unicode characters, wrapped in double quotes, using backslash escapes. A character is represented as a single character string. A string is very much like a C or Java string. But in practice most programmers don\'t even know that a JSON key should be surrounded by double quotes,