Check out example codes for "perl user input". It will help you in understanding the concepts better.

Code Example 1

# Get a city name from the user  
print "Enter the cities you have visited last year... "; 
print "<Ctrl>-D to Terminate \n"; 
@city = <STDIN>; 
# Removes new line appended at  
# the end of every input 
chomp @city; 
# Print the city names 
print "\nCities visited by you are: \[email protected] ";

Learn ReactJs, React Native from