Update BazzBasic-AI-guide.txt

Added guide how to pass array to user-defined function as JSON string

BazzBasic-AI-guide.txt

@@ -2,7 +2,7 @@
 **Name:** BazzBasic-AI-guide.txt  
 **Description:** BazzBasic BASIC interpreter language reference for AI. Use BazzBasic to write, debug, or teach code.    
 **File extensions:*** ".bas"*, *".bb"*  
-**Version:** This guide is written for BazzBasic version 1.2 and is updated 07.04.26 (ddmmyy)  
+**Version:** This guide is written for BazzBasic version 1.2 and is updated 10.04.26 (ddmmyy)  
 **URL:** This guide is stored and updated at https://huggingface.co/datasets/EkBass/BazzBasic_AI_Guide
 # END METADATA
 
@@ -38,7 +38,7 @@
 | Functions defined **before** they are called | Put at top or INCLUDE |
 | Function name ends with `$`, called with `FN` | `FN MyFunc$(a$, b$)` |
 | Function return value **must** be used | `PRINT FN f$()` or `LET v$ = FN f$()` |
-| Arrays **cannot** be passed to functions | Pass individual elements by value |
+| Arrays **cannot** be passed to functions directly | Pass individual elements by value, or serialize with `ASJSON` and deserialize inside with `ASARRAY` — see *Passing Arrays to Functions* section |
 | Case-insensitive | `PRINT`, `print`, `Print` all work |
 | `+` operator does both add and concatenate | `"Hi" + " " + name$` |
 | Division always returns float | `10 / 3` → `3.333...` |
@@ -213,6 +213,7 @@ FN Clamp$(5, 1, 10)                ' ✗ ERROR — return value unused
 - Parameters passed **by value**
 - Labels inside functions are local — GOTO/GOSUB cannot jump outside
 - Supports recursion
+- Arrays as parameters not allowed. Use ASJSON to make array as JSON-string to pass it.
 - Use `INCLUDE` to load functions from separate files if many
 
 ---
@@ -418,6 +419,35 @@ SAVEJSON arr$, "file.json"
 
 ---
 
+## Passing Arrays to Functions
+
+Arrays cannot be passed directly to `DEF FN` functions. The accepted workaround (v1.2+) is JSON serialization: convert the array to a JSON string with `ASJSON`, pass it as a string parameter, then deserialize inside the function with `ASARRAY`.
+
+```basic
+DEF FN ProcessPlayer$(data$)
+    DIM arr$
+    LET count$ = ASARRAY(arr$, data$)
+    RETURN arr$("name") + " score:" + arr$("score")
+END DEF
+
+[inits]
+    DIM player$
+    player$("name") = "Alice"
+    player$("score") = 9999
+    player$("address,city") = "New York"
+
+[main]
+    LET json$ = ASJSON(player$)
+    PRINT FN ProcessPlayer$(json$)
+END
+```
+
+- The function gets a full independent copy — changes do not affect the original array
+- Nested keys work normally: `arr$("address,city")` etc.
+- Overhead is comparable to manually copying an array
+
+---
+
 ## Fast Trigonometry
 
 ~20× faster than `SIN(RAD(x))`, 1-degree precision. Uses ~5.6 KB memory.