How to hide column with the excel javascript api

Question

Hi,
I use the JavaScript API with Excel.
I want to hide a couple of columns.
I don't understant witch syntax to use. My code doesn't work :

export const test = () => {
  Excel.run((context) => {
    const sheet = context.workbook.worksheets.getItem("Sample");
    sheet.getRange("C:D").hidden("true");
  });
};

Where to set 'true' ?
Thanks !

Answer 1

I found it working this way:

async function hideUnhideColumnAsync(hidden) {
        return Excel.run(async (context) => {

let targetSheet = context
                .workbook
                .worksheets
                .getItem('MyWorkSheet');

targetSheet.getRange('A:A').columnHidden = hidden;

return await context.sync();
        });