perl function chr

The chr function in Perl is used to convert an ASCII value (0-255) to its corresponding character. Here's an example of how to use chr:

# Convert ASCII values to characters
my $char1 = chr(65);  # "A"
my $char2 = chr(97);  # "a"
my $char3 = chr(32);  # " "

# Print the resulting characters
print "$char1$char2$char3";  # prints "Aa "

In this example, the chr function is used to convert the ASCII values 65, 97, and 32 to their corresponding characters "A", "a", and " " (a space character), respectively. The resulting characters are then concatenated and printed to the console.

It's important to note that chr can only be used to convert ASCII values between 0 and 255. If you need to convert Unicode code points to characters, you can use the chr function from the Unicode::UCD module instead.