问题：

传递到窗口的文本。提示符被替换为“…”

柳业

2023-03-14

我想允许用户复制大量的电子邮件地址到他们的剪贴板。这个答案似乎是最可靠的方法：

如何用JavaScript复制到剪贴板？

然而，在测试时，我发现窗口。prompt（）始终将其中一封电子邮件的一部分替换为。

下面是测试数据：

test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
test@test.com;test@test.com;

下面是具有以下测试数据的示例代码：

window.prompt ("To copy emails to clipboard, press: Ctrl+C, then Enter", 
  "test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com; test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com;test@test.com;test@test.com;test@test.com;test@test.com;
  test@test.com;test@test.com;");

JSFiddle：http://jsfiddle.net/MkYDz/

点击上面的链接，复制并粘贴文本到文本编辑器，你会看到其中一封电子邮件（大约一半）变成：

test@...om

为什么会发生这种情况？

共有3个答案

宦子琪

2023-03-14

如果我有更多的声誉点，我会评论Jitesh的回答...

如果你不使用jQuery，你不能这样做：

emailsTxtArea.select().focus();

相反，您必须这样做：

emailsTxtArea.select();
emailsTxtArea.focus();

在常规javascript中，select方法不返回对象。

栾越

2023-03-14

window.prompt（）函数在Chromium中限制为2000个字符。如果输入字符串超过此限制（您的示例有2059个字符），则将在标有点的中间剪切输入字符串。这被称为省略号。

这里有一个正好使用2000个字符的演示（我用XXX替换了最后三个字符）：http://jsfiddle.net/MkYDz/2/

;test@tesXXX");

逄岳

2023-03-14

提示的字符限制似乎是MVP所说的原因。有一个相当好的变通方法。使用一个以电子邮件文本为内容的文本区域，并使用选择函数在文本区域中选择整个文本，就像您在提示符中所做的那样。

例子：

$('#container').append('To copy emails to clipboard, press: Ctrl+C, then Enter <br />
<textarea id="emailsToCopy">'+emailsToCopy+'</textarea>');
$('#emailsToCopy').select().focus();

假设您使用jQuery。如果没有，您可以在文本区域DOM元素上使用选择函数。

var emailsTxtArea = document.getElementById(emailsToCopy);
emailsTxtArea.select();
emailsTxtArea.focus();

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传递到窗口的文本。提示符被替换为“…”

共有3个答案

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