{"ScriptPreparationCode":null,"TestCases":[{"Name":"\u002B=","Code":"let str = \u0027\u0027;\r\nconst times = 1000;\r\nfor(let i = 0; i \u003C= times; i\u002B\u002B) {\r\n\tstr \u002B= \u0027a\u0027;\r\n}","IsDeferred":false},{"Name":"\u002B","Code":"let str = \u0027\u0027;\r\nconst times = 1000;\r\nfor(let i = 0; i \u003C= times; i\u002B\u002B) {\r\n\tstr = str \u002B \u0027a\u0027;\r\n}","IsDeferred":false},{"Name":"concat","Code":"let str = \u0027\u0027;\r\nconst times = 1000;\r\nfor(let i = 0; i \u003C= times; i\u002B\u002B) {\r\n\tstr = str.concat(\u0027a\u0027);\r\n}","IsDeferred":false}]}