From: Donal K. F. <don...@ma...> - 2012-11-19 15:12:20
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On 18/11/2012 17:01, Karl Lehenbauer wrote: > Agreed. For the rare case where you want to be sure a variable is there > before you unset it, you can use "info exists" to look; that's > preferable to having to trap an error with catch, anyway. That's even pretty cheap in 8.6, where [info exists] and [unset] are both byte-compiled (the former since 8.5). Donal. |