@mt-kit/utils/dist/is-element/index.js

一个常用的工具库

/**
 * 是否为 DOM
 * @param element 元素
 * @return {element is Element}
 */
export default function isElement(element) {
    return (element instanceof Element ||
        element !== undefined &&
            element !== null &&
            typeof element === "object" &&
            "nodeType" in element &&
            typeof element.nodeType === "number" &&
            "nodeName" in element &&
            typeof element.nodeName === "string");
}
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