Object Reference : Object View and Procedure Reference : String
  
 
clearhist
Clear the contents of the history attribute.
Removes the string’s history attribute, as shown in the label view of the string.
Syntax
string_name.clearhist
Examples
s1.clearhist
s1.label
The first line removes the history from the string S1, and the second line displays the label view of S1, including the now blank history field.
Cross-references
See “Labeling Objects” for a discussion of labels and display names.
See also String::label.