in 1984 Common LISP was used to put in several features in apps. Online Shopping apps use this code like Amazon and Walmart.
In 1986 People Started using Objective C to program smartphones and applications such as Uber and Snapchat.
In 1987 Perl (that was invented by Larry Wall) was used Mainly for text manipulation and it helps you to chat in online games. Did you know that Roblox used Perl coding?