How to find and remove blank paragraphs in a Google Document with Google Apps Script?

Question

I am working with Google documents that contain hundreds of empty paragraphs. I want to remove these blank lines automatically.

In LibreOffice Writer you can use the Find & Replace tool to replace ^$ with nothing, but that didn't work in Google Docs.

My search for ^$ or ^\s*$ returned 0 results even though there should be 3 matches

How can I remove the blank paragraphs with Google Apps Script?

I already tried body.findText("^$");, but that returns null

function removeBlankParagraphs(doc) {
    var body = doc.getBody();
    result = body.findText("^$");

}

Answer 1

I think there has to be a last empty paragraph but this seems to work.

function myFunction() {
  var body = DocumentApp.getActiveDocument().getBody();

  var paras = body.getParagraphs();
  var i = 0;

  for (var i = 0; i < paras.length; i++) {
       if (paras[i].getText() === ""){
          paras[i].removeFromParent()
       }
}
}