{"ScriptPreparationCode":"var arr = Array.from({length:10000}, (v, i) =\u003E i);","TestCases":[{"Name":"reduce with spread","Code":"arr.reduce((a, o) =\u003E [...a, ...[o*2, o*4]], []);","IsDeferred":false},{"Name":"reduce with concat","Code":"arr.reduce((a, o) =\u003E a.concat([o*2, o*4]), []);","IsDeferred":false}]}