如何使用脚本编辑器(Google Docs Add-ons)删除Google文档中的空行？

// Regular expressions with the following special characters are not supported, 
// as they can cause delays in processing your email: * (asterisk), + (plus sign)
// So RegEx is not applicable since you can't use "s*", we need to find another solution

// A row/line is a Paragraph, weird right? So now you iterate through the rows
// Trim paragraph (row), if it's empty, then you can delete it.

function removeEmptyLines() {
  var doc = DocumentApp.getActiveDocument();
  Logger.log("Before:
", doc.getBody().getText());  
  
  var paragraphs = doc.getBody().getParagraphs();
  // Iterating from the last paragraph to the first
  for (var i=paragraphs.length-1; i>=0; i--){
    var line = paragraphs[i];
    if ( ! line.getText().trim() ) {
      // Paragraph (line) is empty, remove it
      line.removeFromParent()
      Logger.log("Removed: ", i);
    }
  }
  Logger.log("After:
", doc.getBody().getText());
}