如何使用 swift 代码从 UITextView 中删除 \n\n?

How to remove \n\n from UITextView using swift code?

我让用户在 UITextView 中输入文本,然后使用此代码将其发送到 firebase

         func sendDataToFirebase(){
            
              let productID = self.ref.childByAutoId().key
              let userID = Auth.auth().currentUser?.uid
           
              let product = [ "productID" : productID,
                              "uid" : userID,
                              "details": self.txtProductDetails.text! as String
        
                ] as [String : Any]
       
            self.ref.child("products").child(productID!).setValue(product)

           }

如果用户输入的文本是多行的,它将转到 firebase 并具有 \n\n

因此,当我获取文本时,我得到的结果与 \n\n 相同。如何删除 \n\n textView 必须看起来井井有条的地方。

试试这个

  func sendDataToFirebase(){
        
          let productID = self.ref.childByAutoId().key
          let userID = Auth.auth().currentUser?.uid
          guard let text = self.txtProductDetails.text else{return}
          let newText = text.replacingOccurrences(of: "\n\n", with: "")
       
          let product = [ "productID" : productID,
                          "uid" : userID,
                          "details": newText
    
            ] as [String : Any]
   
        self.ref.child("products").child(productID!).setValue(product)

       }