public static    class
      Substr.Options
Optional attributes for Substr
Public Methods
| Substr.Options | 
unit(String unit)
                
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Inherited Methods
Public Methods
public Substr.Options unit (String unit)
Parameters
| unit | The unit that is used to create the substring. One of: `"BYTE"` (for defining position and length by bytes) or `"UTF8_CHAR"` (for the UTF-8 encoded Unicode code points). The default is `"BYTE"`. Results are undefined if `unit=UTF8_CHAR` and the `input` strings do not contain structurally valid UTF-8. | 
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