How to pass list argument to TCL array get?

Question

So, I have array:

 set b(1,2,3,4) 5

and I can get its element using

   array get b {1,2,3,4}

#but I can't find the way to pass that key list argument # as a previously defined variable

set x { 1 2 3 4}
array get b x  #does not work
array get b $x #does not work

How to do it?

Don't use array get to fetch single values out of arrays; it is a command that fetches many values in one operation, and is therefore relatively expensive. — Donal Fellows
– Donal Fellows, Commented Dec 24, 2016 at 1:18

Peter Lewerin · Accepted Answer · 2016-12-23 10:35:22Z

1

The value { 1 2 3 4} is not equal to 1,2,3,4.

% set x 1,2,3,4
1,2,3,4
% array get b $x
1,2,3,4 5
% set b($x)
5

Documentation: array

answered Dec 23, 2016 at 10:30

Peter Lewerin

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