Where to see some Examples of Invalid JSON Values?

Here are some Examples of Invalid JSON Values:

1. Invalid JSON Strings:

'John' - Wrong quotes
"John says "Hello!"" - " inside the string must use escape sequence \"

2. Invalid JSON Numbers:

$1.00 - Currency sign is now allowed in numbers
99.00 * 0.15 - Expression is not allowed in numbers

3. Invalid JSON Arrays:

["Hello", 3.14, true, ] - Extra comma (,) in array
["Hello", 3.14, , true] - Extra comma (,) in array
["Hello", 3.14, true} - Closing bracket is wrong
["Hello", 3.14, true, "name": "Joe"] - Name value pair not allowed in array

4. Invalid JSON Objects:

{"name": "Joe", "age": null, } - Extra comma (,) in object
{"name": "Joe", , "age": null} - Extra comma (,) in object
{"name": "Joe", "age": null] - Closing bracket is wrong
{"name": "Joe", "age": } - Missing value in name value pair in object
{"name": "Joe", "age" } - Missing : after name in object
{{}} - Missing name in object

⇒ Using JSON in JavaScript

⇐ JSON Format Syntax

⇑ Introduction of JSON

⇑⇑ JSON Tutorials