javascript split get last element code example

Example 1: javascript split get last element

a = "hello.dear.friends"
a.split(".").pop()
> "friends"

Example 2: split and get last

Use rev command altogether with cut command as follows:
echo "a1 a2 a3 a4 a5" | rev | cut -d ' ' -f '1' | rev
#rev reverses string, then you cut from 2th field to end and reverse back