Find any letter in string
Deleted User
retrn('43244346g435') will return true
retrn('235345536') will return false
PLZ help me!
Thanks guys
edited 1×, last 06.09.11 04:00:17 am
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Scripts Find any letter in string
Find any letter in string
4 replies
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Deleted User
retrn('43244346g435') will return true
retrn('235345536') will return false
PLZ help me!
Thanks guys
OfflineAnd if you want to find letters you have to use "%a".
Here is an example:
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-- WARNING: Untested function my_func() mystring = "123456789" my_func = string.gfind(mystring,"%a") end
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function hasletter(mystring) if tostring(tonumber(mystring))==tostring(mystring) then return false else return true end end
idea: tonumber will discard all letters and only keep numbers. so if the string is a pure number then the function will return false, if it's not a number but also contains different characters then it will return true.
depends on how you want to use it because it does not only detect letters but also other characters.
(this would actually be better to check if a string is a number or not)
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function isnumber(str)
if type(tonumber(str))=="number"
return true
else
return false
end
end
isnumber("2093845") --> true
isnumber("236589f2683794") --> false
isnumber("") --> false
isnumber("-10") --> true
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