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repeat while

repeat while trueOrFalse
   statements
end repeat

The statements in a repeat while structure repeat as long as the condition following the word while is true. HyperCard checks the condition before the first and any subsequent iterations of the loop.

If HyperCard executes an exit repeat statement in the loop, it continues running the handler starting from the first statement after end repeat.

If HyperCard executes a next repeat statement, it returns immediately to the beginning of the repeat loop.

Demo Script

on mouseUp
   show bkgnd field "demo field"
   put return & "    Press the mouse to stop counting..." ¬
   into bkgnd field "demo field"
   put 0 into theCount
   put space & space & theCount after bkgnd field "demo field"
   repeat while the mouse is up
     add 1 to theCount
     put theCount into last word of bkgnd field "demo field"
   end repeat
   wait 20
   hide bkgnd field "demo field"
   put empty into bkgnd field "demo field"
 end mouseUp

Placeholders

true
false
the hilite of bg btn "Yes"
fld "Zip" contains "95014"
the short name of this stack is "Fred"

put "Hello world"   -- built-in command
get total(field 1)  -- function call
global HelpInfo     -- keyword

Related Topics

• Comparison operators
• exit
• Logical operators
• repeat
• repeat for
• repeat until
• repeat with
• Type and existence operators