Re: Table array performance improvement using dot notation

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• Subject: Re: Table array performance improvement using dot notation
• From: David Crayford <dcrayford@...>
• Date: 2014年3月17日 21:05:54 +0800

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On 17/03/2014 8:27 PM, Luiz Henrique de Figueiredo wrote:

local a = {}
for i = 1, arg[1] do a.i = i * i end

This is not doing what you think it is: it is setting just one entry in the
table, the one with key "i". Check the contents of the table after the loop.
In general, a.x is sugar for a["x"]. Even if x happens to be the name of
a variable, in a.x it is used as a string, not a variable.

Got it! That's my REXX background burning me where key.value applies to both, which makes sense because REXX only has one type - string.

Thanks

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• References:
  • Table array performance improvement using dot notation, David Crayford
  • Re: Table array performance improvement using dot notation, Luiz Henrique de Figueiredo

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