{"ScriptPreparationCode":"var arr = [1,2,3]","TestCases":[{"Name":"Array.prototype.unshift","Code":"var a = arr.unshift(99)","IsDeferred":false},{"Name":"spread operator","Code":"var a = [99, ...arr]","IsDeferred":false},{"Name":"Array.prototype.concat","Code":"var a = arr.concat([99])","IsDeferred":false},{"Name":"Array.prototype.splice","Code":"var a = arr.splice(0, 0, 99)","IsDeferred":false}]}