js 数据复制到剪切板

获取html某些数据自动获取一些数据到剪切板

function copyToClipboard(textToCopy) {
 
 
        // navigator clipboard 需要https等安全上下文
        if (navigator.clipboard && window.isSecureContext) {
            // navigator clipboard 向剪贴板写文本
            return navigator.clipboard.writeText(textToCopy);
        } else {
            // 创建text area
            var textArea = document.createElement("textarea");
            textArea.value = textToCopy;
            // 使text area不在viewport，同时设置不可见
            textArea.style.position = "absolute";
            textArea.style.opacity = 0;
            textArea.style.left = "-999999px";
            textArea.style.top = "-999999px";
            document.body.appendChild(textArea);
            textArea.focus();
            textArea.select();
            return new Promise((res, rej) => {
                // 执行复制命令并移除文本框
                document.execCommand('copy') ? res() : rej();
            textArea.remove();
        });
        }
    }