[FREE] ListNinja Extension from Still_Learning

[Still-learning (1-2-3-4...)]

Dear team, this is my another extension which works with lists though i found listutil extension and this will help you in many ways. Documentation is attached the with along with examples. So kindly go through with all the functions example and how it is working.

No libraries are added 
No permission will request
No internet required

Summary

I like the DeepSearch function the most - It will search the specific item in all sort of list with any kind of index. Give Heart to this function. It takes me a lot of time to work on this

1. Basic Operations

Function	1D List Input	2D List Input	Result (1D)	Result (2D)
RemoveDuplicates	[1, 2, 2, 3]	[[1,2], [3,4], [1,2]]	[1, 2, 3]	[[1,2], [3,4]]
SortAscending	["Banana", "Apple"]	[[3, "C"], [1, "A"]]	["Apple", "Banana"]	[[1, "A"], [3, "C"]]
SortDescending	[5, 1, 3]	[["Bob", 25], ["Alice", 30]]	[5, 3, 1]	[["Bob", 25], ["Alice", 30]]
CountOccurrences	["A", "B", "A"]	[[1,2], [1,2], [3,4]] (count [1,2])	2 (for “A”)	2 (for [1,2])

2. List Manipulation

Function	1D List Input	2D List Input	Result (1D)	Result (2D)
Flatten	[1, [2, 3]]	[[1,2], [3,[4,5]]]	[1, 2, 3]	[1, 2, 3, 4, 5]
ReverseList	[1, 2, 3]	[["A", "B"], ["C", "D"]]	[3, 2, 1]	[["C", "D"], ["A", "B"]]
SwapElements	["A", "B", "C"] (pos1=1, pos2=3)	[[1,2], [3,4]] (swap rows)	["C", "B", "A"]	[[3,4], [1,2]]
ChunkList	[1, 2, 3, 4] (size=2)	[[1,2], [3,4], [5,6]] (size=1)	[[1,2], [3,4]]	[ [[1,2]], [[3,4]], [[5,6]] ]

3. Search & Filter

Function	1D List Input	2D List Input	Result (1D)	Result (2D)
FindAllOccurrences	["A", "B", "A"] (target=“A”)	[[1,2], [1,2], [3,4]] (target=[1,2])	[1, 3] (positions)	[1, 2] (positions)
DeepSearch	[1, [2, 3], 2] (target=2)	[[1,2], [3,[4,2]]] (target=2)	[ [2,3], 2 ]	[ [1,2], [4,2] ]
FilterListOfListsByIndex	N/A	[["Apple", "Red"], ["Banana", "Yellow"]] (index=2, match=“Red”)	N/A	[ ["Apple", "Red"] ]

4. List Analysis

Function	1D List Input	2D List Input	Result (1D)	Result (2D)
FindMinMax	[5, 1, 3]	[[10, 20], [5, 30]] (numeric cols)	[1, 5] (min, max)	[5, 30] (min, max across all)
FrequencyTable	["A", "B", "A"]	[[1,2], [1,2], [3,4]]	[ ["A",2], ["B",1] ]	[ [[1,2], 2], [[3,4], 1] ]
AreListsEqual	[1, 2] vs [1, 2]	[[1,2]] vs [[1,2]]	true	true

5. JSON/CSV Conversion

Function	1D List Input	2D List Input	Result (1D)	Result (2D)
ListToJson	["A", 1, true]	[[1, "A"], [2, "B"]]	["A", 1, true] (JSON)	[[1,"A"], [2,"B"]] (JSON)
ListToCsv	["A", "B"]	[[1, "A"], [2, "B"]]	"A","B" (CSV)	"1","A"\n"2","B" (CSV)

6. List statistics( Calculate statistics (sum/avg/min/max) for numeric lists)

Example (1D):
Input: [10, 20, 30] → Output: [60, 20, 10, 30, 3]
Example (2D):
Input: [[5, "X"], [10, 15]] → Output: [30, 10, 5, 15, 3] (ignores non-numbers)

7. Transpose
Transpose (Only from 2D list, Not tested with 3D list and above)
Example (2D):
Input: [[A, B], [C, D], [E, F]] → Output: [[A, C, E], [B, D, F]]

8. Rotate list (positive value for right side, negative value for left side)
Example (1D):
Input: [1, 2, 3, 4] , positions=1 → Output: [4, 1, 2, 3]
Example (2D):
Input: [[A,B], [C,D], [E,F]] , positions=-1 → Output: [[C,D], [E,F], [A,B]]

9. SortListOfListsByIndex

Function	2D List Input (Before Sorting)	Parameters	Result (Sorted 2D List)
Sort by Index	[ ["Alice", 30], ["Bob", 25], ["Eve", 28] ]	index=2, ascending=true	[ ["Bob", 25], ["Eve", 28], ["Alice", 30] ]
Sort Descending	[ [3, "C"], [1, "A"], [2, "B"] ]	index=1, ascending=false	[ [3, "C"], [2, "B"], [1, "A"] ]

Key Notes for Documentation:

1. 1D Lists: Simple flat lists (e.g., [1, 2, 3]).
2. 2D Lists: Lists of lists (e.g., [[1,2], [3,4]]).
3. YAIL Handling: All examples assume inputs are YailList objects.
4. Error Cases: Functions like FindMinMax ignore non-numeric values.

I hope i have made clear cut examples to each function also the output to the best of my knowledge. Make use of this extension and convey your valuable feedback if it finds any error or compilation error.

Thanks a lot

Regards,
Still Learning

Blocks

Version 2

Added one conversion (Dic to json array), Proguard added

Extension

Version 2:
ListNinja (1).aix (21.7 KB)

[Still-learning (1-2-3-4...)]

1. n-gram generation
   2.Example*:
   Input: [1, 2, 3, 4], windowSize=2 Output: [[1, 2], [2, 3], [3, 4]]
2. Track changes in dynamically updated lists (e.g., sensor data).
   4.Example*:
   Input: oldList=[1, 2, 3], newList=[1, 4, 3]
   Output: {added: [4], removed: [2], unchanged: [1, 3]}
3. GroupBy(listOfDicts, key)
   6.Example*:
   Input: [{“name”:“Alice”,“dept”:“HR”}, {“name”:“Bob”,“dept”:“IT”}], key=“dept”
   Output: {“HR”: [{“name”:“Alice”}], “IT”: [{“name”:“Bob”}]}
4. GetPermutations(list, size)
   Useful for password cracking simulations or game mechanics.
   8.Example*:
   Input: [1, 2, 3], size=2
   Output: [[1,2], [1,3], [2,1], [2,3], [3,1], [3,2]]
5. RunningStats(list)
   Real-time analytics (e.g., live sensor readings).
   10.Example*:
   Input: [10, 20, 30]
   Output: [
   {index:1, sum:10, avg:10, min:10, max:10},
   {index:2, sum:30, avg:15, min:10, max:20},
   {index:3, sum:60, avg:20, min:10, max:30}
   ]
6. GenerateMarkovChain(list, order)
   AI text/code generation for educational apps.
   12.Example*:
   Input: [“A”, “B”, “A”, “C”], order=1
   Output: {“A”: [“B”, “C”], “B”: [“A”], “C”:

Shall i add these features in the upcoming version?

[charlesaccount (CharlesKoder93)]

This extension is great. A lot of the blocks are super useful, thanks very much. I personally love the remove duplicates and find all occurrences blocks

[Mr_YouTuber_Official]

Thanks For Adding Dictionary List to Json … It works for me

[Mr_YouTuber_Official]

D8 Error after using your extension in kodular but working in Mit
@Still-learning Can You Please Resolve it

[Taifun]

What about using the -d8fix option as suggested in the error message?

Taifun

[Mr_YouTuber_Official]

you mean i have to use 1 extension , custom list picker or list ninja ?

[Still-learning (1-2-3-4...)]

ListNinja (1).aix (21.7 KB)

Thank you @Mr_YouTuber_Official for pointing this error. In Version 2 i was tried to add AndroidX Support which causes that error. Now i resolved it.

[Still-learning (1-2-3-4...)]

@Mr_YouTuber_Official

ean i have to use 1 extension

Nope, Taifun suggested you to follow the error message. Because error message itself suggested you what to do,

[Mr_YouTuber_Official]

is it resolved now ? Should i test it ?

[Mr_YouTuber_Official]

i tried your new version , now app build but crash after opening it…

[Still-learning (1-2-3-4...)]

Are you sure because of this extension?

[Mr_YouTuber_Official]

yes , because after removing it again app works

[Still-learning (1-2-3-4...)]

Sorry for the inconvenience. Let me once again go through it, but actually do not know the reason, as i am not using any external libraries, support, complex code, etc etc, but throwing this error. Let me catch the logcat and try to resolve it.

[Mr_YouTuber_Official]

ok ok thanks for your good work

[Still-learning (1-2-3-4...)]

Meanwhile if possible share us your logcat if you catch

[Mr_YouTuber_Official]

i do not catch that , you can try using your both extension . then error will be infront of you…

[Taifun]

What happens if you use version 1 and follow the suggestion?

Taifun

[Mr_YouTuber_Official]

App version or in extension ???

[Taifun]

Obviously version 1 of the extension
Taifun