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Jul 17th, 2019
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  1. set x { {} {} {} }
  2. set refID 1
  3. proc addValue {value} {
  4. global x refID
  5. set value [expr $value*2]
  6. lset x $refID end+1 $value
  7. }
  8. addValue 7
  9. addValue 8
  10. # => {} {14 16} {}
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