FromJSON: Difference between revisions

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(New page: __NOTOC__ {{Server client function}}<!-- Change this to "Client function" or "Server function" appropriately--> <!-- Describe in plain english what this function does. Don't go into detai...)
 
(The bug that existed in MTA 1.3.6 is no longer relevant so i removed that warning message.)
(22 intermediate revisions by 13 users not shown)
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__NOTOC__  
__NOTOC__  
{{Server client function}}<!-- Change this to "Client function" or "Server function" appropriately-->
{{Server client function}}
<!-- Describe in plain english what this function does. Don't go into details, just give an overview -->
{{New feature/item|3.0140|1.2||
This fake function is for use with blah & blah and does blahblahblabhalbhl
This function is available client-side in 1.2 and onwards.
}}
 
This function parses a [[JSON]] formatted string into variables. You can use [[toJSON]] to encode variables into a JSON string that can be read by this function.


==Syntax==  
==Syntax==  
<!-- NOTE: don't use 'special' names for variable names, e.g. you shouldn't be writing things like 'player player, vehicle vehicle', instead write something like 'player thePlayer, vehicle vehicleToGetInto'. This is less confusing and prevents the syntax highlighting being odd -->
<syntaxhighlight lang="lua">
<syntaxhighlight lang="lua">
returnType functionName ( arguments )
var fromJSON ( string json )
</syntaxhighlight>  
</syntaxhighlight>  


===Required Arguments===  
===Required Arguments===  
<!-- List each argument one per line. This should be the argument's name as in the argument list above, NOT the argument's data type -->
*'''json:''' A JSON formatted string
*'''argumentName:''' description


<!-- Only include this section below if there are optional arguments -->
===Returns===
===Optional Arguments===  
Returns variables read from the JSON string.
{{OptionalArg}}
*'''argumentName2:''' description
*'''argumentName3:''' description


===Returns===
'''Note:''' Indices of a JSON object such as "1": "cat" are being returned as [[string]], not as [[int]]eger.
<!-- Make this descriptive. Explain what cases will return false. If you're unsure, add a tag to it so we can check -->
Returns ''true'' if blah, ''false'' otherwise.


==Example==  
==Example==  
<!-- Explain what the example is in a single sentance -->
This makes data equal: ''{ ["1"] = "cat", ["2"] = "mouse", ["3"] = 5, ["4"] = null, ["cat"] = 5, ["mouse"] =1 }''
This example does...
<!-- Add the code below, an emphasis should be on making it clear, not optimized. You could provide two versions if you wish, one clear and well commented, the other optimized -->
<syntaxhighlight lang="lua">
<syntaxhighlight lang="lua">
--This line does...
local data = fromJSON ( '[ { "1": "cat", "2": "mouse", "3": 5, "4": null, "cat":5, "mouse":1 } ]' )
blabhalbalhb --abababa
--This line does this...
mooo
</syntaxhighlight>
</syntaxhighlight>
==Example 2==
<syntaxhighlight lang="lua">
local name, weapon, ammo = fromJSON("[\"Desert Eagle\", 24, 147]")
</syntaxhighlight>
==Requirements==
{{Requirements|1.0|1.1.1-9.03316|}}


==See Also==
==See Also==
<!-- Change FunctionArea to the area that this function is in on the main function list page, e.g. Server, Player, Vehicle etc -->
{{Server_functions}}
{{Server_functions}}
[[Category:Needs_Example]] <!-- leave this until the example is completed. -->
[[Category:Need_Syntax]] <!-- leave this until syntax is available. Cannot document the function or event without syntax. -->
[[Category:Incomplete]] <!-- leave this unless you complete the function -->

Revision as of 01:08, 1 July 2017

This function is available client-side in 1.2 and onwards.

This function parses a JSON formatted string into variables. You can use toJSON to encode variables into a JSON string that can be read by this function.

Syntax

var fromJSON ( string json )

Required Arguments

  • json: A JSON formatted string

Returns

Returns variables read from the JSON string.

Note: Indices of a JSON object such as "1": "cat" are being returned as string, not as integer.

Example

This makes data equal: { ["1"] = "cat", ["2"] = "mouse", ["3"] = 5, ["4"] = null, ["cat"] = 5, ["mouse"] =1 }

local data = fromJSON ( '[ { "1": "cat", "2": "mouse", "3": 5, "4": null, "cat":5, "mouse":1 } ]' )

Example 2

local name, weapon, ammo = fromJSON("[\"Desert Eagle\", 24, 147]")

Requirements

Minimum server version 1.0
Minimum client version 1.1.1-9.03316

Note: Using this feature requires the resource to have the above minimum version declared in the meta.xml <min_mta_version> section. e.g. <min_mta_version server="1.0" client="1.1.1-9.03316" />

See Also