getRange variable range - google-sheets

Question

I am trying to use a google sheet to rank a list of elements. This list is continually updated, so it can be troublesome to update the list if i already have hundreds of elements ranked and need to rank 10 new ones. Rather than having to re-rank some of the previously ranked elements every time (whether manually or using formulas), i thought it easier to write a macro that would re-rank for me.
1 - element A
2 - element B
3 - element C
new element: element D
For instance if i wanted element D to be ranked 2nd, i would need to change element B to 3 and element C to 4. This is tedious when doing hundreds of elements.
Here is my code so far but I get stuck with the getRange lines. Rankings are in column A.
function RankElements() {
var ss = SpreadsheetApp.getActiveSpreadsheet();
var s = ss.getActiveSheet();
var r = s.getActiveCell();
var v1 = r.getValue();
var v2 = v1 + 1
var v3 = v2 + 1
var lastRow = s.getLastRow();
s.getRange(1,v2).setValue(v2);
s.getRange(1,v3).autoFill(s.getRange(1,v3+":"+1,lastRow), SpreadsheetApp.AutoFillSeries.DEFAULT_SERIES);
s.getRange(1,v3+":"+1,lastRow).copyTo(s.getActiveRange(), SpreadsheetApp.CopyPasteType.PASTE_VALUES, false);
s.getFilter().sort(1, true);
};

Answer 1

You can do the following:
Iterate through all values in column A.
For each value, check if (1) ranking is equal or below the new one, and (2) it's not the element that is being added.
If both these conditions are met, add 1 to the current ranking.
It could be something like this:
function RankElements() {
const sheet = SpreadsheetApp.getActiveSheet();
const cell = sheet.getActiveCell();
const row = cell.getRow();
const newRanking = sheet.getActiveCell().getValue();
const firstRow = 2;
const columnA = sheet.getRange(firstRow, 1, sheet.getLastRow() - 1).getValues()
.map(row => row[0]); // Retrieve column A values
for (let i = 0; i < columnA.length; i++) { // Iterate through column A values
if (columnA[i] >= newRanking && (i + firstRow) != row) {
sheet.getRange(firstRow + i, 1).setValue(columnA[i] + 1); // Add 1 to ranking
}
}
sheet.getFilter().sort(1, true);
};