Vad*_*suk 2 javascript firefox jquery google-chrome
此代码在Google Chrome,Opera,IE 11中运行良好.但它在Mozilla Firefox和Safari中不起作用.我在以下字符串中收到错误"var successful = document.execCommand('copy');"
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>Test Copy</title>
<link href="css/bootstrap-theme.css" rel="stylesheet">
<link href="css/bootstrap.css" rel="stylesheet">
<script src="js/bootstrap.js"></script>
<script src="js/npm.js"></script>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
</head>
<body>
<div id="text">
Copytextblalalalal
</div>
<button id="btnCopy" onclick="copyText()">COPY</button>
</div>
</div>
<script>
function copyText() {
var emailLink = document.querySelector('#text');
var range = document.createRange();
range.selectNode(emailLink);
window.getSelection().addRange(range);
try {
var successful = document.execCommand('copy');
var msg = successful ? 'successful' : 'unsuccessful';
console.log('Copy command was ' + msg);
} catch (err) {
console.log('Oops, unable to copy');
}
window.getSelection().removeAllRanges();
}
</script>
</body>
</html>
从Firefox 41(2015年9月)开始,默认情况下,当从某些受信任(用户触发的)事件触发时,复制命令应该可用,例如响应按钮单击时将触发的事件.MDN 的兼容性表提供了更多信息,另请参阅发行说明.
因此,问题中的代码应该有效.实际上,我测试了一些非常相似的东西(见下面的代码),它对我来说非常适合使用Firefox 44.
function doCopy() {
var textToCopy = document.getElementById('textToCopy');
var range = document.createRange();
range.selectNodeContents(textToCopy);
window.getSelection().addRange(range);
document.execCommand('copy');
}
(function() {
var el = document.getElementById("copyTrigger");
el.addEventListener("click", doCopy, false);
})();textarea {display: block; margin-top: 1em; width: 500px;}<div id="textToCopy">Elephant</div>
<button id="copyTrigger">Copy above text</button>
<textarea placeholder="Try pasting here to test"></textarea>