R: Test if JSON content is valid

isValidJSON {RJSONIO} | R Documentation

## Test if JSON content is valid

### Description

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.

### Usage

    isValidJSON(content, asText = inherits(content, "AsIs"), ...)

### Arguments

`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 `content` is actually the JSON content or the name of a file
`...` | additional parameters for the methods

### Value

A logical value indicating whether the content is valid JSON (`TRUE`) or invalid (`FALSE`).

### Author(s)

Duncan Temple Lang. Functionality suggested by Jeroen Ooms.

### References

libjson

### See Also

`fromJSON`

### Examples

       isValidJSON(I('{"foo" : "bar"}'))

       isValidJSON(I('{foo : "bar"}'))
       isValidJSON('{foo : "bar"}', TRUE)

[Package RJSONIO version 1.3-0 Index]