Quick Edits in Google Sheets

ListWalker.js

function LISTWALKER(columnsRange) {
  
    var columnArray = [];
    var rowArray = [];
    for (var i = 0; i <= columnsRange - 1; i++) {
      columnArray = columnsRange[i];
      for (var j = 0; j <= columnArray - 1; j++) {
        rowArray = columnArray[i];
        
      }
    }
  
  
};

SearchAndDestroy.js

function createSearchAndDestroyMenu() {
   var menu = SpreadsheetApp.getUi().createMenu("QuickEdits");
   menu.addItem("Search and Destroy", "searchAndDestroyPrompt");
   menu.addToUi();
}

function searchAndDestroyPrompt() {
  Logger.log("running");
  var ui = SpreadsheetApp.getUi();
  var result = ui.prompt("Search A column and delete what?");

  //Get the button that the user pressed.
  var button = result.getSelectedButton();

  if (button === ui.Button.OK) {
    Logger.log("The user clicked the [OK] button.");
    Logger.log(result.getResponseText());

    var sheet = SpreadsheetApp.getActiveSheet();
    var rows = sheet.getDataRange();
    var numRows = rows.getNumRows();
    var values = rows.getValues();
    var rowsDeleted = 0;
    var row = '';
    var toDelete = '';
    for (var i = 0; i <= numRows - 1; i++) {
      row = values[i];
      
      var cellString = row[0]+'';
      if (cellString.indexOf(result.getResponseText())>-1) {
          toDelete += row[0]+"\n";
      }
    }

    //ui.alert(rowsDeleted+" rows found and deleted.");
    var confirmResult = ui.alert(
     'Please confirm',
     "Are you sure you want to delete these rows?\n\n"+toDelete,
      ui.ButtonSet.YES_NO);

    // Process the user's response.
    if (confirmResult == ui.Button.YES) {

      var row = '';
      for (var i = 0; i <= numRows - 1; i++) {
        row = values[i];
        // This searches all cells in columns A (change to row[1] for columns B and so on) 
        // and deletes row if cell is empty or has value 'delete'.
        var cellString = row[0]+'';
        if (cellString.indexOf(result.getResponseText())>-1) {
            sheet.deleteRow((parseInt(i)+1) - rowsDeleted);
            rowsDeleted++;
        }
      }
      ui.alert(rowsDeleted+' rows destroyed.');

    } else {
      // User clicked "No" or X in the title bar.
      Logger.log("The user canceled the delete process");
    }

  } else if (button === ui.Button.CLOSE) {
    Logger.log("The user clicked the [X] button and closed the prompt dialog."); 
  }
};