string.lower
Example
Demonstrates the use of this function.
print( string.lower( "ABCDEFG" ) )
print( string.lower( "AbCdefG" ) )
print( string.lower( "abcdefg" ) )
print( string.lower( "1234567890" ) )
Output:
abcdefg
abcdefg
abcdefg
1234567890
Example
Demonstrates a common use for string.lower - case-insensitive user input.
-- All keys in this table must be lowercase:
local products = {}
products.apple = "Buy an apple!"
products.banana = "Buy a bunch of bananas!"
products.tomato = "There's also tomatoes."
-- This function is case-insensitive, meaning "APPLE", "apple", and "APPle" are all the same.
function GetProduct(userinput)
return userinput, products[string.lower(userinput)]
end
-- Demonstration:
print(GetProduct("apple"))
print(GetProduct("Apple"))
print(GetProduct("APPLE"))
print()
print(GetProduct("banana"))
print(GetProduct("BaNaNa"))
Output:
apple Buy an apple!
Apple Buy an apple!
APPLE Buy an apple!
banana Buy a bunch of bananas!
BaNaNa Buy a bunch of bananas!
Rust
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