HyperTalk Reference
Home » HyperTalk Reference » Keywords

Note: This is a work in progress and will be formatting errors. Read more about the project on the home page.

repeat while

repeat while trueOrFalse
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


Any expression that evaluates to the HyperTalk and AppleScript constants true or false.

For example:

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

Any return-separated list of built-in commands, user-defined handlers, or keywords that are part of a message or function handler.

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

Related Topics

« repeat until | HyperTalk Reference | repeat with »

Version 0.7b1 (March 24, 2022)

Made with Macintosh

Switch to Modern View