{"ScriptPreparationCode":"var data = [];\r\nfor (let i = 0; i \u003C 10000; \u002B\u002Bi) data[i] = i;\r\nvar add = [];\r\nfor (let i = 0; i \u003C 100; \u002B\u002Bi) add[i] = -i;","TestCases":[{"Name":"unshift","Code":"data.unshift(...add);","IsDeferred":false},{"Name":"splice","Code":"data.splice(0, 0, ...add)","IsDeferred":false}]}