When I tried to send to my express server JSON like this one:
"{ name: '...', description: '...' }"
This error had been throwed:
SyntaxError: Unexpected token n ...
Trying to parse JSON like this in Chrome:
"{ 'name': '...', 'description': '...' }"
Leads to this error:
SyntaxError: Unexpected token ' ...
Why parsing those JSONs leads to an error? Especially the second JSON looks valid (using ' instead of ").
You can't use single quotes in JSON. String values and keys must be enclosed in double quotes.
A value can be a string in double quotes, or a number, or true or false or null, or an object or an array. These structures can be nested.
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.
An object is an unordered set of name/value pairs. An object begins with { (left brace) and ends with } (right brace). Each name is followed by : (colon) and the name/value pairs are separated by , (comma).
Quotes from json.org
