# JSON_ARRAY

*LSL constant*

```lsl
string JSON_ARRAY = "\\u{FDD2}";
```

Used with the [llList2Json](/functions/llList2Json/) function to indicate that the provided list (which may be empty) is to be used to encode and return a string serialization of a Json array.

Also a possible return value for the [llJsonValueType](/functions/llJsonValueType/) function that indicates the Json data type of at the specifier location within a given Json text is, in fact, a Json array.

## Examples

<details open>
<summary>Showing usage to form a Json array:</summary>

```lsl
string jsonText;

default
{
	state_entry()
	{
		jsonText = llList2Json(JSON_ARRAY, ["A", 3, "B", <1.0,1.0,1.0>, "C", "A phrase", "D", PI]);
	}
	touch_start(integer total_number)
	{
		// In the resulting Json array, all Values are separated by a comma (,).
		llOwnerSay(jsonText); //  ["A",3,"B","<1.000000, 1.000000, 1.000000>","C","A phrase","D",3.141593]
	}
}
```

</details>

<details>
<summary>Showing usage to determine if a Value within a Json text is an array:</summary>

```lsl collapse={1-13}
string jsonText;

default
{
	state_entry()
	{
		// Set jsonText to [3,{"A":77,"B":66},"A phrase"]
		// A Json array whose second element is a Json object
		jsonText = "[3,{\"A\":77,\"B\":66},\"A phrase\"]";
		llOwnerSay(jsonText);
	}
	touch_start(integer total_number)
	{
		// Test the entirety of the Json text to see if it's an array
		// Note use of the empty list for this
		if (llJsonValueType(jsonText, []) == JSON_ARRAY)
		{
			llOwnerSay("The supplied string is a Json array."); // TRUE
		} else {
			llOwnerSay("The supplied string is not a Json array.");
		}

		// Test second element of the array
		if (llJsonValueType(jsonText, [1]) == JSON_ARRAY)
		{
			llOwnerSay("The second element of the array is a Json array.");
		} else {
			llOwnerSay("The second element of the array is not a Json array."); // TRUE
		}
	}
}
```

</details>

## See also

### Constants

| Type Flags | Value | Unicode | [Integer](/functions/llOrd/) | [URL Encoded](https://wiki.secondlife.com/wiki/Category:LSL_Encoding/URL) | HTML Encoded | Description |
| --- | --- | --- | --- | --- | --- | --- |
| [JSON_INVALID](/constants/JSON_INVALID/) |  | U+FDDO | 64976 | "%EF%B7%90" | &amp;#xFDD0; | Value returned when inputs are not well formed. |
| [JSON_OBJECT](/constants/JSON_OBJECT/) |  | U+FDD1 | 64977 | "%EF%B7%91" | &amp;#xFDD1; |  |
| [JSON_ARRAY](/constants/JSON_ARRAY/) |  | U+FDD2 | 64978 | "%EF%B7%92" | &amp;#xFDD2; |  |
| [JSON_NUMBER](/constants/JSON_NUMBER/) |  | U+FDD3 | 64979 | "%EF%B7%93" | &amp;#xFDD3; |  |
| [JSON_STRING](/constants/JSON_STRING/) |  | U+FDD4 | 64980 | "%EF%B7%94" | &amp;#xFDD4; |  |
| [JSON_NULL](/constants/JSON_NULL/) |  | U+FDD5 | 64981 | "%EF%B7%95" | &amp;#xFDD5; |  |
| [JSON_TRUE](/constants/JSON_TRUE/) |  | U+FDD6 | 64982 | "%EF%B7%96" | &amp;#xFDD6; |  |
| [JSON_FALSE](/constants/JSON_FALSE/) |  | U+FDD7 | 64983 | "%EF%B7%97" | &amp;#xFDD7; |  |
| [JSON_DELETE](/constants/JSON_DELETE/) |  | U+FDD8 | 64984 | "%EF%B7%98" | &amp;#xFDD8; | Used with [llJsonSetValue](/functions/llJsonSetValue/) to remove a key-value pair. |

### Functions

- [llList2Json](/functions/llList2Json/)
- [llJsonValueType](/functions/llJsonValueType/)

---

*Source: [JSON ARRAY](https://wiki.secondlife.com/wiki/JSON_ARRAY) on the Second Life Wiki. Content from the Second Life Wiki articles JSON ARRAY (revision 1194653, 2015-01-23) and Template:LSL Constants/JSON (revision 1215249, 2023-10-29), CC BY-SA 3.0.*

---

From lsl.dev: https://lsl.dev/constants/JSON_ARRAY/