{"ScriptPreparationCode":"var columns = Array.from(new Array(10000)).map(() =\u003E ({ fieldName: \u0027column\u0027 }));\r\nvar preselectedColumns = Array.from(new Array(10000)).map(() =\u003E \u0027column\u0027)\r\nvar result = []","TestCases":[{"Name":"Join","Code":"columns.map((child) =\u003E {\r\n const childChecked = preselectedColumns.includes(child.fieldName);\r\n if (childChecked) {\r\n result.push(child.fieldName);\r\n }\r\n})","IsDeferred":false},{"Name":"map \u002B filter \u002B includes","Code":"result = columns\r\n.map(child =\u003E child.fieldName)\r\n.filter(fieldName =\u003E preselectedColumns.includes(fieldName))","IsDeferred":false}]}