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requires parameter
number of parameters: 1, 2 or 3
Usage: varprompt ‘‘varname’‘
- will bring up an input box without prompt, and the text the user types will be stored in varname
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The second and third parameters are optional. The second specifies the text that is going to be the title of the input box, and the third parameter specifies whether the text the user types will be displayed as normal characters or as asterisks (*), which is useful for password prompts.
Note: - multiple parameters (if given) must be separated by commas
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