AND
function AND(): number | string | booleanDescription
Checks whether all arguments are TRUE, and returns TRUE if all arguments are TRUE.
Returns
number | string | booleanTry It
const oWorksheet = Api.GetActiveSheet();
var oFunction = Api.GetWorksheetFunction();
var ans = oFunction.AND(12 < 100, 34 < 100, 50 < 100); //AND logical function
oWorksheet.GetRange("C1").SetValue(ans);