{"ScriptPreparationCode":"var dtmfTone = \u00229\u0022;\r\nvar regex = /^[0-9A-D#*]\u002B$/;\r\nvar arr = [\u00220\u0022, \u00221\u0022, \u00222\u0022, \u00223\u0022, \u00224\u0022, \u00225\u0022, \u00226\u0022, \u00227\u0022, \u00228\u0022, \u00229\u0022, \u0022A\u0022, \u0022B\u0022, \u0022C\u0022, \u0022D\u0022, \u0022#\u0022, \u0022*\u0022];","TestCases":[{"Name":"Regex","Code":"regex.test(dtmfTone);","IsDeferred":false},{"Name":"Array includes","Code":"arr.includes(dtmfTone);","IsDeferred":false}]}