Question

在没有回答的情况下在SE上看到类似的问题。

如果我单击代码中的按钮，我会提醒字符串，并在警报中使用换行符进行格式化。然后将字符串粘贴到textarea中时，将删除所有换行符。

 SELECT r.x1 AS x1a
      , r.x2 AS x2a
      , r.y1 AS y1a
      , r.y2 AS y2a 
   FROM region r
  WHERE r.series_id =  ?  -- series_id_a parameter
    AND EXISTS ( SELECT 1
                   FROM region q
                  WHERE q.series_id =  ? -- series_id_b parameter
                    AND q.x1 = r.x1
                    AND q.x2 = r.x2
                    AND q.y1 = r.y1
                    AND q.y2 = r.y2
                )

function pasteText() {
    
  var theText = "a\nb\nc";
  alert(theText);
  document.getElementById("theText").innerText = theText;
}

注意：这只是Firefox中的一个问题

Answer 1

使用textContent而不是innerText

请参阅下面的代码段

function pasteText() {
    
  var theText = "a\nb\nc";
  alert(theText);
  document.getElementById("theText").textContent = theText;
}

<textarea id="theText"></textarea>
<br><button onclick="pasteText()">Click</button>

或innerHTML

function pasteText() {
    
  var theText = "a\nb\nc";
  alert(theText);
  document.getElementById("theText").innerHTML = theText;
}

<textarea id="theText"></textarea>
<br><button onclick="pasteText()">Click</button>

从粘贴到textarea的javascript字符串保留换行符

1 个答案: