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15.5.336 ist

ist(x [, n, mode])

Returns number x as a right-aligned string. If mode equals 0, then the string is padded with blanks. If mode equals 1, then the string is padded with zeros. For these modes, n indicates the length of the string. If mode equals 2, then the string is as short as possible.

Alias: istring

See also: fstring