json.fields

json.fields() Function

• Introduced in version 1.3b49

Returns the fields (keys) for a JSON Object or the indexes for a JSON Array as a string list. The type of the value returned depends on the delimiter parameter. Note: Because JSON Objects are unordered, json.fields will not reflect the order they were set in.

Usage

json.fields(jobj)

json.fields(jobj, delim)

Parameters

• delim =
  • unspecified: a standard string list is returned, with its default "," delimiter.
  • "json": a JSON Array is returned.
  • "x": a string list is returned with "x" used as a delimiter.

Example

[h: a=json.fromStrProp("a=1;b=44;c=12")]
[r: json.fields(a)]

Returns

 b,c,a

[h: a=json.fromList("a,1,g,4")]
[r: json.fields(a,";")]

Returns

 0;1;2;3

[h: a=json.fromStrProp("a=1;b=44;c=12")]
[r: json.fields(a, "json")]

Returns

["a","c","b"]