How to pass a variable in url in fromJSON command

问题

I am trying to pass a variable in the url and flatten using jsonlite, but i am not able to pass variable pages using the loop. How do i loop using FromJSON?

pages<- list()
for(i in 1:20) {
mydata <- fromJSON("https:www.example.com/page="+i+"&access_token=xyz", flatten = TRUE) 
}
filings <-rbind.pages(pages)

回答1:

What about this?

pages<- list()
for(i in 1:20) {
  mydata <- fromJSON(paste("https:www.example.com/page=", i, "&access_token=xyz", sep = "+"), flatten = TRUE)
}
filings <-rbind.pages(pages)

来源：https://stackoverflow.com/questions/26941044/how-to-pass-a-variable-in-url-in-fromjson-command