Julia Essentials

;

We add ; to suppress output returned. For example let’s compare two codes with and without ; at the end. x=2 would return 2 in the console as an output while x=2; will not return anything in the console.

enumerate()

enumerate() returns both the index and the value of an element in an array.

collect(enumerate(countries))

Output:

 (1, "Korea")
 (2, "Japan")
 (3, "China")

countries = ("Korea", "Japan", "China")
for (index, country) in enumerate(countries) 
    println("Country $(country) in index $(index)")
end 

Output:

Country Korea in index 1
Country Japan in index 2
Country China in index 3

Reference

https://julia.quantecon.org/getting_started_julia/julia_essentials.html