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→{{header|Lua}}: added Lua solution
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extends(public::minimal)).
</lang>
=={{header|Lua}}==
In Lua, variables are global by default, but can be modified to be local to the block in which they are declared.
<lang lua>foo = "global" -- global scope
print(foo)
local foo = "local module" -- local to the current block (which is the module)
print(foo) -- local obscures the global
print(_G.foo) -- but global still exists
do -- create a new block
print(foo) -- outer module-level scope still visible
local foo = "local block" -- local to the current block (which is this "do")
print(foo) -- obscures outer module-level local
for foo = 1,2 do -- create another more-inner scope
print("local for "..foo) -- obscures prior block-level local
end -- and close the scope
print(foo) -- prior block-level local still exists
end -- close the block (and thus its scope)
print(foo) -- module-level local still exists
print(_G.foo) -- global still exists</lang>
{{out}}
<pre>global
local module
global
local module
local block
local for 1
local for 2
local block
local module
global</pre>
=={{header|M2000 Interpreter}}==
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