Examples of Invalid JSON Values

Q

Where to see some Examples of Invalid JSON Values?

✍: FYIcenter.com

A

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

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JSON Tutorials
Where to find tutorials on JSON (JavaScript Object Notation) text string format? I want to know how to use JSON. Here is a large collection of tutorials to answer many frequently asked questions compiled by FYIcenter.com team about JSON text string format: Introduction of JSON What Is JSON? JSON Tex... 2021-08-04, 4988👍, 1💬

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Where to find tutorials on Using JSON in JavaScript? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on Using JSON in JavaScript. What Is JavaScript JSON Object JSON.parse() Function in JavaScript JSON-parse.html - JSON.parse() Example Code JSON-p... 2023-04-13, 1460👍, 0💬

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JSON Text String Example
Where to get a simple example of JSON text string? You can go to JSON at Wikipedia to get the following JSON text string example: { "firstName": "John", "lastName": "Smith", "isAlive": true, "age": 25, "address": { "streetAddress": "21 2nd Street", "city": "New York", "state": "NY", "postalCode": "1... 2023-09-07, 1327👍, 0💬

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Where to get a JSON.parse() Example Code in JavaScript? Here is a good JSON.parse() example code in JavaScript.  <html> <body> <script type="text/javascript"> var val1 = JSON.parse('2020'); //... 2023-04-13, 1213👍, 0💬

JSON-parse-Error.html - JSON.parse() Errors
How to catch errors when calling the JSON.parse() function in JavaScript? If you want to catch errors when calling the JSON.parse() function in JavaScript, you can follow this tutorial: 1. Use the "try {...} catch {...}" block to catch the error object throw from the JSON.parse() function, as shown ... 2023-09-07, 1160👍, 0💬

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