window.document.execCommand（）无法正常工作

Question

I am trying to copy a string into clipboard using a dummy input element in my angularjs application. The following broadcast handler is called, and the input.value is set to the right value. However window.document.execCommand() has no effect.

$scope.$root.$on('on-share-link-made', function (event, args) {
    var input = $('#MyInput')[0];
    input.value = args.uri;
    input.select();
    window.document.execCommand("copy");
});

Answer 1

I need to see your html and possibly your css. execCommand wont work if the input has display: none , width: 0 or height: 0 . If you are trying to copy some string in the ui, your best approach is to position the input tag using absolute/fixed position out of vision.

Answer 2

仅当在事件处理程序（如按钮单击）中调用window.document.execCommand时，该命令才起作用。