OP didn't say to never learn it. They said just cram it in for the interview. Once you get the job, sure learn it. Unless your job doesn't require it or you're

OP didn't say to never learn it. They said just cram it in for the interview. Once you get the job, sure learn it. Unless your job doesn't require it or you're not that interested. But, online we need to be pedantic. That's rule 1.