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[json/en] Cut noise, formatting, links.

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Also removed some duplicate information.
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@ -8,27 +8,24 @@ contributors:
- ["Michael Neth", "https://github.com/infernocloud"]
---
As JSON is an extremely simple data-interchange format, this is most likely going to be the simplest Learn X in Y Minutes ever.
JSON is an extremely simple data-interchange format. As [json.org](http://json.org) says, it is easy for humans to read and write and for machines to parse and generate.
A piece of JSON must represent either:
* A collection of name/value pairs (`{ }`). In various languages, this is realized as an object, record, struct, dictionary, hash table, keyed list, or associative array.
* An ordered list of values (`[ ]`). In various languages, this is realized as an array, vector, list, or sequence.
an array/list/sequence (`[ ]`) or a dictionary/object/associated array (`{ }`).
JSON in its purest form has no actual comments, but most parsers will accept C-style (`//`, `/* */`) comments. Some parsers also tolerate a trailing comma (i.e. a comma after the last element of an array or the after the last property of an object), but they should be avoided for better compatibility.
For the purposes of this, however, everything is going to be 100% valid JSON. Luckily, it kind of speaks for itself.
For the purposes of this tutorial, everything is going to be 100% valid JSON. Luckily, it kind of speaks for itself.
A JSON value must be a number, a string, an array, an object, or one of the following 3 literal names: true, false, null.
Supported data types:
Supporting browsers are: Firefox 3.5+, Internet Explorer 8.0+, Chrome 1.0+, Opera 10.0+, and Safari 4.0+.
File extension for JSON files is ".json" and the MIME type for JSON text is "application/json".
Many programming languages have support for serializing (encoding) and unserializing (decoding) JSON data into native data structures. Javascript has implicit support for manipulating JSON text as data.
More information can be found at http://www.json.org/
JSON is built on two structures:
* A collection of name/value pairs. In various languages, this is realized as an object, record, struct, dictionary, hash table, keyed list, or associative array.
* An ordered list of values. In most languages, this is realized as an array, vector, list, or sequence.
An object with various name/value pairs.
* Strings: `"hello"`, `"\"A quote.\""`, `"\u0abe"`, `"Newline.\n"`
* Numbers: `23`, `0.11`, `12e10`, `3.141e-10`, `1.23e+4`
* Objects: `{ "key": "value" }`
* Arrays: `["Values"]`
* Miscellaneous: `true`, `false`, `null`
```json
{
@ -66,20 +63,20 @@ An object with various name/value pairs.
"alternative style": {
"comment": "check this out!"
, "comma position": "doesn't matter - as long as it's before the next key, then it's valid"
, "comma position": "doesn't matter, if it's before the next key, it's valid"
, "another comment": "how nice"
}
},
"whitespace": "Does not matter.",
"that was short": "And done. You now know everything JSON has to offer."
}
```
A single array of values by itself is also valid JSON.
## Further Reading
```json
[1, 2, 3, "text", true]
```
Objects can be a part of the array as well.
```json
[{"name": "Bob", "age": 25}, {"name": "Jane", "age": 29}, {"name": "Jack", "age": 31}]
```
* [JSON.org](http://json.org) All of JSON beautifully explained using flowchart-like graphics.