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- Reason
- Correction
- Example
- Extracting the first character of the string
Error 531: The negative or null subscripts are not allowed
You are using the operators for string extraction ([[ or ]]). The extraction subscript for a WLanguage string always starts from 1: the subscript of the fist character is set to 1. Modify the value specified for the extraction subscript. Extracting the first character of the string Code triggering the error sString is string = "WEBDEV is great" Trace(sString[[0]]) Possible correction Replace 0 by 1 (first character of the string). sString is string = "WEBDEV is great" Trace(sString[[1]])
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