create a function with specific parameter types

Question

I'm making a Google Apps Script function that takes two parameters: a Spreadsheet object and a Transaction object, which I created. How can I specify that I want my parameters to have that type?

I'm looking for this functionality:

function addTransaction(Spreadsheet sheet,Transaction t){//blah blah blah doesn't matter}

Answer 1

You can use JSDoc syntax to show hints, like this. (not sure what Transaction means, but hope you get the idea)

/**
 * @param {SpreadsheetApp.Spreadsheet} sheet
 * @param {Transaction} t
 */
function addTransaction(sheet, t){ blah blah}

See here or more details: https://jsdoc.app/tags-param

Answer 2

Google Apps Script is based on JavaScript which is not a statically typed language. You can't enforce types. You will need to manually check the types in your function body.