{"ScriptPreparationCode":null,"TestCases":[{"Name":"Str concat","Code":"let str = \u0027\u0027;\r\nfor (let i = 0; i \u003C 1000; i \u002B= 1) {\r\n str \u002B= Math.floor(Math.random() * Date.now()).toString(36);\r\n}\r\nconsole.log(str);","IsDeferred":false},{"Name":"Array join","Code":"let str = [];\r\nfor (let i = 0; i \u003C 1000; i \u002B= 1) {\r\n str.push(Math.floor(Math.random() * Date.now()).toString(36));\r\n}\r\nconsole.log(str.join(\u0027\u0027));","IsDeferred":false}]}