json.fields

Function json.fields

Introduced in MapTool 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.

• If the delimiter is not specified then a string list is returned with the default value of ',' is used.
• If the delimiter "json" then a json array is returned.
• Otherwise a string list is returned with the delimiter passed in.

Usage

[h: strList = json.fields(jobj)]
[h: strList = json.fields(jobj, delim)]
[h: jobj = json.fields(jobj, 'json')]

Examples

  [h:a=json.fromStrProp("a=1;b=44;c=12")] [r:json.fields(a)]
  [h:a=json.fromList("a,1,g,4")][r:json.fields(a)]
  [h:a=json.fromStrProp("a=1;b=44;c=12")] [r:json.fields(a, "json")]

Returns

 a,c,b
 0,1,2,3 
 ["a","c","b"]