There's been an upset in the Octoverse, as Python has unseated JavaScript as the most-used programming language on GitHub.… Python's ascendancy from the number-two slot, which it's held since ...

JavaScript is used by 63% of the coders surveyed, followed by Python (44%) and Java (38%). Hired said these languages were favoured because of their useful and well-maintained libraries and packages.

Whatever the reason, by November 2018 Python's share of questions asked each month on Stack Overflow rose to 11.3 percent, ahead of JavaScript's share of 10.2 percent.