Our Top Programming Languages interactive tries to tackle the problem of estimating a language’s popularity by looking for proxy signals. Not all data sources contain information for each programming language and we interpret this information as the programming language having “no hits” (that is, not being popular). This metric captures the prevalence of the different programming languages as used and referenced in engineering scholarship. IEEE Jobs SiteWe measured the demand for different programming languages in job postings on the IEEE Job Site. We used Github’s listing of it’s top 50 programming languages, filtering out entries for things like Docker configuration scripts.