R: split dataframe by multiple answers

Question

So I have a dataframe with results of the survey. The thing is, I have several questions with multiple answers in cell. For example:

q1|q2
answer1;answer2;ansert4 |1986

so I need to extract 'tidy' dataset for specific analysis tasks, meaning: split those cells down in the same column and copy other specified columns so it will be like that:

q1|q2
answer1|1986
answer2|1986
answer4|1986

How can i do this in R? I am pretty sure it is a simple task, but I don't have any clue...

Answer 1

Another similar solution would be

library(splitstackshape)
cSplit(df, "q1", sep = ";", direction = "long")
#         q1   q2
# 1: answer1 1986
# 2: answer2 1986
# 3: ansert4 1986