{"ScriptPreparationCode":"var arr = (new Array(50)).map(() =\u003E{\r\n let len = Math.floor(Math.random() * 1000) \u002B 1;\r\n return (new Array(len)).map((v,i) =\u003E {return i});\r\n});","TestCases":[{"Name":"concat apply","Code":"[].concat.apply([], arr);","IsDeferred":false},{"Name":"ES6 spread","Code":"[].concat(...arr);","IsDeferred":false}]}