STEP Keyword in ABAP Loops

"𝗦𝗧𝗘𝗣 𝗞𝗲𝘆𝘄𝗼𝗿𝗱 𝗶𝗻 𝗔𝗕𝗔𝗣
"The 𝗦𝗧𝗘𝗣 keyword in ABAP simplifies working with loops when you want to skip odd or even indices. 
"Previously, this was achieved using 𝘀𝘆-𝘁𝗮𝗯𝗶𝘅, but with STEP, you can directly control both the step size and the loop's direction, making the process more straightforward and efficient.
"Here is a small example,

TYPES: tt_numbers TYPE TABLE OF int8 WITH EMPTY KEY.
DATA(lt_numbers) = VALUE tt_numbers( FOR i = 1 THEN i + 1 WHILE i < 11 ( CONV #( i ) ) ).

"Step with Positive number -> Forward
LOOP AT lt_numbers INTO DATA(forward_num) STEP 2.
  WRITE:/ forward_num.
ENDLOOP.
DATA(lt_step_forward) = VALUE tt_numbers( FOR num in lt_numbers STEP 2 ( num ) ).
"Output -> 1,3,5,7,9

"Step with Negative Number -> Backword
LOOP at lt_numbers INTO DATA(backword_num) STEP -2.
  WRITE:/ backword_num.
ENDLOOP.
DATA(lt_step_backward) = VALUE tt_numbers( FOR num in lt_numbers STEP -2 ( num ) ).
"Output -> 10,8,6,4,2

"Step with From and To
LOOP AT lt_numbers INTO DATA(from_to_index) FROM 6 STEP -1.
  WRITE:/ from_to_index.
ENDLOOP.
DATA(lt_step_from_to) = VALUE tt_numbers( FOR num in lt_numbers FROM 6 STEP -1 ( num ) ).
"Outpu -> 6,5,4,3,2,1

"Step can be used in
"LINES OF jtab [FROM idx1] [TO idx2] [STEP n] [USING KEY keyname]