{"ScriptPreparationCode":"var str = \u00271873189741874817\u0027;","TestCases":[{"Name":"Regex","Code":"/^[0-9]{1,20}$/.test(str);","IsDeferred":false},{"Name":"Split and Join","Code":"str.length \u003C 20 \u0026\u0026 str.split(\u0027\u0027).every(x =\u003E !isNaN(x));","IsDeferred":false}]}