http://purl.org/tcl/home/man/tcl8.4/TclCmd/continue.htm

----
Suppose the following code:

 foreach  i  $List1  { 
 
     foreach  j  $List2  { 

        if  [some condition] {continue}

        eval {blah blah blah}
     }
 }

[Continue] interrupts the foreach j loop. But what if I wanted it to break the foreach i loop?

Place the [[foreach i]] command in a proc and use [return]
instead of [continue].

[Lars H]: Or use [breakeval] as follows

  foreach i $List1 { 
     breakeval-aware foreach j $List2 { 
        
        if  {[some condition]} then {
           breakeval {continue} ; # Break out of j loop, do a continue for the i loop.
        }

        eval {blah blah blah}
     }
 }

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