js 复制字符到剪切板

const copyToClipboard = str => {
    const el = document.createElement('textarea');
    el.value = str;
    el.setAttribute('readonly', '');
    el.style.position = 'absolute';
    el.style.left = '-9999px';
    document.body.appendChild(el);
    el.select();
    document.execCommand('copy');
    document.body.removeChild(el);
};
点击执行此函数

来源:https://hackernoon.com/copying-text-to-clipboard-with-javascript-df4d4988697f