Ive got an input that will have different IDs:       { "title": "Screening Questions - Questions Test ID 48670", "description": "", "type": "object", "properties": { "15": { "type": "string", "title": "<img src=\"data&colon;image/png;base64,iVBORw0KGgoAAA ANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4 //8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU 5ErkJggg==\" alt=\"Red dot\" />", "description": "" }, "17": { "type": "string", "title": "Test ID", "description": "" }, "18": { "type": "string", "title": "Test ID", "description": "" }, "19": { "type": "string", "title": "asdsadsad", "description": "" } }, "dependencies": [], "required": [], "av:propertyOrder": [ 15, 17, 18, 19 ] }     And I'm changing it with the following jolt:     [ { "operation": "shift", "spec": { "definitions": { "optionSet_*": "definitions.&(0,1)", "*": "&" }, "*": "&" } }, { "operation": "shift", "spec": { "properties": { "*": { // simple match. Put the value '4' in the output under the "Rating" field "title": "Questions[&1].question", "type": { "number": { "#select": "Questions[&3].type" }, "string": { "#textarea": "Questions[&3].type" }, "array": { "#multiselect": "Questions[&3].type" } }, "$": "Questions[&1].id" } }, "dependencies": { "*": { // simple match. Put the value '4' in the output under the "Rating" field "switch": { "*": { "then": { "properties": { "*": { "title": "Questions[&1].question", "type": { "number": { "#select": "Questions[&3].type" }, "string": { "#textarea": "Questions[&3].type" }, "array": { "#multiselect": "Questions[&3].type" } }, "$": "Questions[&1].id" } }, "required": { "*": { "#true": "Questions[@(1)].required" } } } } } } }, "definitions": { "*": { "anyOf": { "*": { "title": "Questions[&3].options[#2].label", "const": "Questions[&3].options[#2].value" } } } }, "required": { "*": { "#true": "Questions[@(1)].required" } } } }, { "operation": "remove", "spec": { "Questions": { "0": "" } } }, { "operation": "shift", "spec": { "Questions": "", "*": "&" } } ]     which leaves me with the following:       [ null, null, null, null, null, null, null, null, null, null, null, null, null, null, { "id" : "15", "question" : "<img src=\"data&colon;image/png;base64,iVBORw0KGgoAAA ANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4 //8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU 5ErkJggg==\" alt=\"Red dot\" />", "type" : "textarea" }, null, { "id" : "17", "question" : "Test ID", "type" : "textarea" }, { "id" : "18", "question" : "Test ID", "type" : "textarea" }, { "id" : "19", "question" : "asdsadsad", "type" : "textarea" } ]       Any idea how to remove those pesky nulls? Tried with the good ol recursivelysquashnulls but it wont do it... thanks in advance!     ... View more