Hide/Unhide Rows Excluding Specific Row - google-apps-script

Question

I am on basics of appscript and learning it progressively with the help of this community. Any help on below will be appreciated.
I am trying to design a script which hides and unhides rows on change of selection and for that I got a solution from question posted at below link.
Google Sheet Hide/Unhide Rows Using Appscrit Unhide
Below is the code given in above link
function onEdit(e) {
const sh = e.range.getSheet();
const rg = e.source.getRangeByName("NamedRange1");
const sr = rg.getRow();
const sc = rg.getColumn();
const er = sr + rg.getHeight() - 1;
const ec = sc + rg.getWidth() - 1;
if (sh.getName() == "Sheet3" && e.range.columnStart >= sc && e.range.columnStart <= ec
&& e.range.rowStart >= sr && e.range.rowStart <= er && e.value) {
//e.source.toast("Flag1")
const sh2 = e.source.getSheetByName("Sheet2");
const vs = sh2.getDataRange().getValues();
vs.forEach((r, i) => {
if (r.every(e => e == '')) {
if (e.value == "A") {
sh2.hideRows(i + 1);
} else {
sh2.showRows(i + 1)
}
}
});
}
}
The code is given proper result but I want a bit modification in the same. The unhide command of the code unhides all the rows of the sheet, however I want the code to unhide all the rows except first row of the sheet.
Any help on above will really be appreciated.

Answer 1

From The unhide command of the code unhides all the rows of the sheet, however I want the code to unhide all the rows except first row of the sheet., how about the following modification?
From:
vs.forEach((r, i) => {
if (r.every(e => e == '')) {
if (e.value == "A") {
sh2.hideRows(i + 1);
} else {
sh2.showRows(i + 1)
}
}
});
To:
vs.forEach((r, i) => {
if (r.every(f => f == '')) {
if (e.value == "A") {
sh2.hideRows(i + 1);
} else if (i > 1) {
sh2.showRows(i + 1);
}
}
});
When this is reflected in your script, sh2.showRows(i + 1) is run when e.value != "A" and i > 1. By this, the 1st row is skipped.
And also, in the case of r.every(e => e == ''), e has already been used with the event object. So, I changed it to f.