{"ScriptPreparationCode":"var testArray = [{\r\n description: \u0027Random description.\u0027,\r\n testNumber: 123456789,\r\n testBoolean: true,\r\n testObject: {\r\n testString: \u0027test string\u0027,\r\n testNumber: 12345\r\n },\r\n testArray: [{\r\n myName: \u0027test name\u0027,\r\n myNumber: 123245\r\n }]\r\n},{\r\n description: \u0027Random description.\u0027,\r\n testNumber: 123456789,\r\n testBoolean: true,\r\n testObject: {\r\n testString: \u0027test string\u0027,\r\n testNumber: 12345\r\n },\r\n testArray: [{\r\n myName: \u0027test name\u0027,\r\n myNumber: 123245\r\n }]\r\n}];\r\n\r\nvar testCopy = null;\r\n\r\nvar deepClone = function(obj) {\r\n var out;\r\n if (Array.isArray(obj)) {\r\n out = [];\r\n for (var index = 0; index \u003C obj.length; \u002B\u002Bindex) {\r\n let subArray = obj[index];\r\n out.push((subArray === null) ? subArray : (subArray instanceof Date) ? new Date(subArray.valueOf()) : (typeof subArray === \u0027object\u0027) ? deepClone(subArray) : subArray);\r\n }\r\n } else {\r\n out = {};\r\n for (var key in obj) {\r\n var subObject = obj[key];\r\n out[key] = subObject === null ? subObject : subObject instanceof Date ? new Date(subObject.valueOf()) : (typeof subObject === \u0027object\u0027) ? deepClone(subObject) : subObject;\r\n \r\n \r\n }\r\n }\r\n return out;\r\n};\r\n","TestCases":[{"Name":"Lodash cloneDeep","Code":"testCopy = _.cloneDeep(testArray);","IsDeferred":false},{"Name":"Native map deep slice(turns objects into arrays)","Code":"testCopy = testArray.map(arr =\u003E testArray.slice());","IsDeferred":false},{"Name":"Native JSON parse","Code":"testCopy = JSON.parse(JSON.stringify(testArray));","IsDeferred":false},{"Name":"Native map deep slice at 0(turns objects into arrays)","Code":"testCopy = testArray.map(arr =\u003E testArray.slice(0));","IsDeferred":false},{"Name":"Native map(shallow clone)","Code":"testCopy = testArray.map(arr =\u003E arr);","IsDeferred":false},{"Name":"Recursive deep clone","Code":"testCopy = deepClone(testArray);","IsDeferred":false},{"Name":"Map deep clone","Code":"testCopy = testArray.map(arr =\u003E deepClone(arr));","IsDeferred":false},{"Name":"Object.assign shallow clone","Code":"testCopy = Object.assign([...testArray]);","IsDeferred":false},{"Name":"structuredClone","Code":"testCopy = structuredClone([...testArray]);","IsDeferred":false}]}