R – How to create a new vector based on the strings in another vector

I am a beginner coding in R.

I am trying to create a vector based on the strings of another vector. Say:

vector_one <- c("A", "B", "C", "D")

I want to create a second vector which reads the strings in vector_one, and connects it to new values. So I guess it would be something like:

vector_two <- if vector_one == "A" then vector_two == "apple",
              if vector_one == "B" then vector_two == "banana",
              (and so on)

so that the end result of my vector_two would be:

vector_two <- c("apple", "banana", "cat", "dog")

How can I proceed? Thank you for your help in advance.

I’m stuck beyond words.

>Solution :

You could also use recode or even case_match:

recode(vector_one, 'A' = 'apple', 'B' = 'banana', 'C' = 'cat', 'D' = 'dog')
[1] "apple"  "banana" "cat"    "dog"   

case_match(vector_one, 'A'~'apple', 'B' ~ 'banana', 'C'~'cat', 'D'~'dog')
[1] "apple"  "banana" "cat"    "dog"