Echo batch file arrays using a variable for the index?

Question

If I have a batch file and I am setting arrays with an index that is a variable

@echo off
SET x=1
SET myVar[%x%]=happy

How do I echo that t

Answer 1

There is a special ! character in batch to deal with your situation. Use echo !myVar[%x%]!, from How to return an element of an array in Batch?. ! means delayed expansion. The variable myVar will not get expanded until after %x% is, yielding the expression you want.

Answer 2

SET x=1
SET myVar[%x%]=happy

call echo %%myvar[%x%]%%
set myvar[%x%]
for /f "tokens=2* delims==" %%v in ('set myvar[%x%]')  do @echo %%v
setlocal enableDelayedExpansion
echo !myvar[%x%]!
endlocal

I would recommend you to use

setlocal enableDelayedExpansion
echo !myvar[%x%]!
endlocal

as it is a best performing way

Answer 3

one way you can do this is to use

call echo %%myVar[%x%]%%

call lets you put variables in places where they wouldn't normally work, if you use the double percents