Check input data type
Conditional statements make your code intelligent so that it can respond to your inputs or to the results it calculates.
One common use for conditional statements is to respond to the users' inputs. In this example, let's say you have written some code for an online shop that will return a number n of this week's top-rated products. This code only works if the input n is an integer (a whole number). You want to check if n is suitable and print a message to help the user.
The input n has already been assigned and is available in your environment.
Den här övningen är en del av kursen
Introduction to Julia
Övningsinstruktioner
- Write an if statement to check whether the type of parameter
nis equal toInt64. - If it is this type, print the statement
"n is the correct type". - Write an else block so that the message
"This script only works on integers"is printed otherwise. - End the conditional statement.
Interaktiv övning med praktiskt arbete
Testa den här övningen genom att slutföra den här exempelkoden.
# Check if n is the correct type
if ____==____
# Print n is the correct type
println(____)
# Use an else statement to print if n is not the correct type
____
____(____)
# Finish the conditional statement
____
println(n)