windowsbatch-filecmdshell32

Iterating over an array batch script

While following a tutorial for iterating over arrays in a batch script I didn't get the same result:

enter image description here

@echo off 
setlocal enabledelayedexpansion 
set topic[0] = comments 
set topic[1] = variables 
set topic[2] = Arrays 
set topic[3] = Decision making 
set topic[4] = Time and date 
set topic[5] = Operators 

for /l %%n in (0,1,5) do ( 
   echo !topic[%%n]! 
)

When I run this command I get:

enter image description here

Solution

  • in batch spaces matter because it's an argument delimiter

    set topic[0] = comments

    should be

    set topic[0]=comments

    Something strange with cmd is that variables can terminate with a space

    set topic[0] = comments
echo %topic[0] %
 comments