[ivxvm]

> But presumably there is also more competition for jobs using popular technologies?

Maybe, but personally I don't feel it has such a significant contribution as number of positions you can apply to. In these languages you basically can find a dozen of positions worldwide open at any given moment of time and apply to them, in JS you can find hundreds upon hundreds of positions every day and just filter and keep applying, and it still can take weeks or months to get an offer, a lot of your applications aren't even processed at that moment, which could be the case with less popular tech positions as well.