js实现复制功能demo

eg.点击按钮即可实现将input标签中的内容复制到剪切板里

<input id="input-link" type="text" ng-model="mode.url" class="link-input">
<button class="copy-btn" ng-click="copyLink()">复制</button>


function copyLink(){
    alert("copy");
    var ele = document.getElementById("input-link");
    ele.select();
    document.execCommand("Copy");
    alert("复制成功");
    $uibModalInstance.close();
}