How do I find the amount of letters in a string value?

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#1

^^Just as the name implies, ask questions to better understand!

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#2

Two ways:

length = string.len(string)

OR

var = “abcd”
length = #var

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#3

I’m curious, do you want to know the amount of letters in the string, or do you want string length?

#4

if you could answer a couple things for me, that would be stellar:

  1. how to find amount of letters in a string

  2. how to index each letter

#5

for just letters, you can do:

#string.match(stringValue,"%a+")

#6

more specifically,

local allLetters = string.match(stringValue,"%a+")
local amountOfLetters = #allLetters

You can read more on this here

#7

As said before, string.len(YourStringHere).

local str = "My string is right here"
local length = string.len(str)

Using the string.sub.
let’s say you want to get the 3rd character, you do string.sub(str, 3,3).
Or second:
string.sub(str, 2,2)
Here’s an example of iterating through the string:

local str = "My string is right here"
for i, string.len(str), 1 do
    local letter = string.sub(str, i, i)
    print(letter)
end
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#8

that is getting the character length/string length

not the amount of letters
which would be

#string.match(stringValue,"%a+")

credit to @mc3334

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#11

If you’ve got just simple text then len() is OK

If you wanted to deal with emojis and other things then look at utf8.graphemes

local text = "hello😀"

local len = 0
for first, last in utf8.graphemes(text) do 
	local grapheme = text:sub(first, last) 
	len = len + 1
	print(grapheme)
end

print(len)  -- will be 6 here
print(text:len()) -- will be 9 here
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