{"ScriptPreparationCode":"var array1 = Array(400).fill().map(() =\u003E Math.round(Math.random() * 40));\r\nvar array2 = Array(400).fill().map(() =\u003E Math.round(Math.random() * 40));","TestCases":[{"Name":"Array.prototype.concat","Code":"var others = array1.concat(array2);","IsDeferred":false},{"Name":"spread operator","Code":"var others = [...array1, ...array2];","IsDeferred":false}]}