Remove rows based on duplicates in a single column in Google Sheets

Question

I have spreadsheet similar to this:

I\'d like to remove all duplicates of row based on the first column data.

So from this screenshot row, 1 and 2 woul

Answer 1

You can also use a google apps script to do this. To open the script editor from google sheets:

1. Choose the menu Tools > Script Editor.

2. Copy and paste the following script:

   function removeDuplicates() {
       var sheet = SpreadsheetApp.getActiveSheet();
   
       var data = sheet.getDataRange().getValues();
       var newData = [];
       var ids = [];
       for (var i in data) {
         var row = data[i];
         var duplicate = false;
         if (ids.indexOf(row[0]) > -1) {
           duplicate = true;
         } else {
           duplicate = false;
           ids.push(row[0]);
         }
         if (!duplicate) {
           newData.push(row);
         }
     }
     sheet.clearContents();
     sheet.getRange(1, 1, newData.length, newData[0].length).setValues(newData);
     }
   

This assumes that you want to dedupe based on the contents of the first row of you sheet. If not you can adjust the row references from the 0 index to any other index you wish.