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Closes #211 -- handle missing input consistently #261

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Closes #211 -- handle missing input consistently #261

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2 changes: 2 additions & 0 deletions R/fromJSON.R
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Original file line number Diff line number Diff line change
Expand Up @@ -77,6 +77,8 @@
fromJSON <- function(txt, simplifyVector = TRUE, simplifyDataFrame = simplifyVector,
simplifyMatrix = simplifyVector, flatten = FALSE, ...) {

# empty JSON -> empty data.frame
if (is.na(txt) || is.null(txt)) return(data.frame(NULL))
# check type
if (!is.character(txt) && !inherits(txt, "connection")) {
stop("Argument 'txt' must be a JSON string, URL or file.")
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