In other words, full-stack developers assume the roles of both the front-end and back-end developers. They can work with most current languages including CSS, HTML, Python, Java, JavaScript, Ruby ...

Tech Republic estimates the average base salary of a full-stack developer at $111,640, and notes that the number of job ads looking for full-stack developers has tripled since 2014.

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.