Test if JSON content is valid
This function and its methods allows the caller to verify if the JSON content is strictly valid. Even if the content is invalid, the parser may still be able to make sense of it or at least get it partially correct and yield a result. So this function allows the caller to verify that the input is legitimate and not just rely on the parser not failing.
isValidJSON(content, asText = inherits(content, "AsIs"), ...)
content |
the JSON input either as a string, the name of a file or URL, or a connection object. |
asText |
a logical value that specifies whether the value in
|
... |
additional parameters for the methods |
A logical value indicating whether the content is valid JSON
(TRUE
) or invalid (FALSE
).
Duncan Temple Lang. Functionality suggested by Jeroen Ooms.
libjson
isValidJSON(I('{"foo" : "bar"}')) isValidJSON(I('{foo : "bar"}')) isValidJSON('{foo : "bar"}', TRUE)
Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.