Map index delete

Question

Hello All, 
 
 I am facing issue with the following map. I am building dynamic filters. Here is the map is the output. But I wanted to delete logicalExpression:{} from the map. It can be there at any level. If logicalExpression is null then my resulted map should not contain logicalExpression:{} 
 
 a!localVariables(
 local!conditions: {
 a!map(
 operator: "AND",
 logicalExpressions: {
 a!map(
 operator: "AND",
 filters: {
 a!map(field: null, operator: null, value: null),
 a!map(field: null, operator: null, value: null)
 },
 logicalExpressions: {
 a!map(
 operator: "AND",
 filters: {
 a!map(field: null, operator: null, value: null),
 a!map(field: null, operator: null, value: null)
 },
 logicalExpressions: {}
 ),
 a!map(
 operator: "AND",
 filters: {
 a!map(field: null, operator: null, value: null),
 a!map(field: null, operator: null, value: null)
 },
 logicalExpressions: {}
 )
 }
 )
 }
 )
 },
local!conditions
)

David Jimenez · Answer

You ned to use a recursive approach... or try converting the array to json... replace the elements with a regular expression, and convert it again to an appian structure..

Mike Schmitt · Answer

It's a little ambiguous what you're after, without some examples of different inputs and what you would expect the outputs to be (and why). 
 Generally, you can't exactly "delete" something from a map, but similarly to the JSON approach, you could always structure an expression to build a new map from an existing map and just omit certain properties when needed.