//CopyEvent
var copyEvent = new ClipboardEvent('copy',
{
dataType: 'text/plain',
data: 'Data to be copied'
}
);
document.dispatchEvent(copyEvent);
//PasteEvent
var pasteEvent = new ClipboardEvent('paste',
{
dataType: 'text/plain',
data: 'My string'
}
);
document.dispatchEvent(pasteEvent);