Read the hit count off a Europe PMC response

Pure. 0 is a real count and comes back as 0L; only an absent hitCount is NA.

Usage

europepmc_parse_count(body)

Arguments

body

A parsed Europe PMC search response.

Value

A single integer, or NA_integer_.

References

Ferguson et al. (2021). Europe PMC in 2020. Nucleic Acids Research 49(D1), D1507-D1514. doi:10.1093/nar/gkaa994

Service documentation: https://europepmc.org/

Examples

europepmc_parse_count(list(hitCount = 2530))
#> [1] 2530
europepmc_parse_count(list(hitCount = 0))
#> [1] 0