I lose track of languages anymore. Hard to keep them all straight.
Basic
Fortran
8086 Assembly
370 Assembly
COBOL
PL/1
Exec
Exec2
REXX
Perl
Python
Java
Javascript
Groovy
Not to mention embedded and DB things:
SQL
Splunk (Programming Language)
CyberArk
Now, Typescript. 
ES2018 for anything we run inside NodeJS 14, for anything which is to run in a browser ES6 for now. These are the targets we’ve found to give us the best results for now. Since we use NodeJS 14, ES2020 would also be a possible target.
You’re almost revealing y age here robs 
REXX - we used to joke about the name … “dog programming language” 
I actually got a chance to meet Mike Collishaw once. 
So I’m the only one here who loves programming in Google Apps Script (GAS)? nyuk nyuk nyuk
I’ve come a long way from Apple ][ BASIC of 1980. Bring on TS!