Copy a piece of HTML code (such as table) from Dreamweaver and want to use it as a string. I habitually paste it into Notepad, replace one double quotation mark with two double quotation marks, remove the newlines, connect and copy it. Paste it back into Dreamweaver, but because you can't visually see whether there is a newline character in the string in Notepad, the program always prompts an error: "Unterminated string constant" when running. It often takes several debugging attempts to fix it. The newline characters are completely deleted. In the Dreamweaver code view, you can intuitively see whether there are any newline characters in the string, so you don't need to debug again and again in the future. 
