give a cell a bottom border google script

To give a cell a bottom border using Google Script, follow these steps:

1. Access the spreadsheet: Open the Google Sheet where you want to apply the bottom border to a cell.

2. Identify the cell: Determine the specific cell or range of cells that you want to add the bottom border to.

3. Get the sheet: Retrieve the sheet object using the getActiveSheet() method. This will allow you to work with the active sheet in the spreadsheet.

4. Get the range: Use the getRange() method to specify the range of cells you want to apply the bottom border to. For example, you can use getRange("A1") to target a single cell or getRange("A1:C3") to target a range of cells.

5. Set the border: Use the setBorder() method on the range object to set the border style. For the bottom border, you can use setBorder(null, null, null, true, null, null, "black", SpreadsheetApp.BorderStyle.SOLID).

6. The first three null parameters are for the top, left, and right borders, which we don't want to modify.

7. The true parameter sets the bottom border.
8. The next two null parameters are for the diagonal borders, which we are not modifying.
9. The "black" parameter sets the color of the border.

10. The SpreadsheetApp.BorderStyle.SOLID parameter sets the style of the border.

11. Apply the border: Call the setBorder() method on the range object to apply the bottom border.

Here's an example of the code to give a cell (A1) a bottom border:

function addBottomBorder() {
  var sheet = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet();
  var range = sheet.getRange("A1");
  range.setBorder(null, null, null, true, null, null, "black", SpreadsheetApp.BorderStyle.SOLID);
}

After running the script, the cell A1 will have a bottom border. You can modify the code to target different cells or ranges as per your requirements.