'''string range''' ''string first last''

Returns a range of consecutive characters from ''string'', starting with the character whose index is ''first'' and ending with the character whose index is ''last''. An index of 0 refers to the first character of the string. ''first'' and ''last'' may be specified as for the '''index''' method. If ''first'' is less than zero then it is treated as if it were zero, and if ''last'' is greater than or equal to the length of the string then it is treated as if it were '''end'''. If ''first'' is greater than ''last'' then an empty string is returned.

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See also:

   * [string]
   * [string index]

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