Lucee Function Reference

isjson()

Evaluates whether a string is in a valid JSON (JavaScript Object Notation) or JSON5 data interchange format.

Example

isjson(any var,[string format]):boolean

Category

decision,json,javascript,json5

Arguments

The arguments for this function are set. You can not use other arguments except the following ones.
Name Type Required Default Value Description
var any  Yes   A string or variable that represents one.  
format string  No json5 The format of the input string. Possible values are:
  • **json**: Standard JSON format
  • **json5**: JSON5 format which allows additional features such as comments and unquoted keys