JavaScript and Java scored high as both most liked and most disliked programming languages in JetBrains’ State of the Developer Ecosystem survey. Perl was far and away the most disliked language.

First of all, JavaScript is not Java. It has nothing to do with Java (The language and its associated technologies from Sun Microsystems). To be honest, I'm not even sure why it's called JavaScript.

By contrast, JavaScript and Java appeared in 4.8 and 2.6 percent of all discussions on distributed ledger development. Here is the top 10 breakdown of mentions by percentage: ...

The top 5 languages learned: Java, followed by C, Python, C++, and JavaScript. JetBrains also asked which massive open online course platforms are the most popular.