LEN
function LEN(arg1: string = null): numberDescription
Returns the number of characters in a text string.
Parameters
- arg1
stringdefault: null The text whose length will be returned. Spaces are considered as characters.
Returns
numberTry It
var oWorksheet = Api.GetActiveSheet();
var oFunction = Api.GetWorksheetFunction();
oWorksheet.GetRange("A1").SetValue(oFunction.LEN("Online Office"));