@antv/x6/es/common/polyfill/index.js

JavaScript diagramming library that uses SVG and HTML for rendering

export function forEachPolyfill(arr) {
    arr.forEach((item) => {
        if (Object.hasOwn(item, 'append')) {
            return;
        }
        Object.defineProperty(item, 'append', {
            configurable: true,
            enumerable: true,
            writable: true,
            value(...args) {
                const docFrag = document.createDocumentFragment();
                args.forEach((arg) => {
                    const isNode = arg instanceof Node;
                    docFrag.appendChild(isNode ? arg : document.createTextNode(String(arg)));
                });
                this.appendChild(docFrag);
            },
        });
    });
}
// compatible with NodeList.prototype.forEach() before chrome 51
// https://developer.mozilla.org/en-US/docs/Web/API/NodeList/forEach
if (typeof window === 'object' &&
    window.NodeList &&
    !NodeList.prototype.forEach) {
    NodeList.prototype.forEach = Array.prototype.forEach;
}
// compatible with ParentNode.append() before chrome 54
// https://github.com/jserz/js_piece/blob/master/DOM/ParentNode/append()/append().md
if (typeof window !== 'undefined') {
    ;
    ((arr) => {
        forEachPolyfill(arr);
    })([Element.prototype, Document.prototype, DocumentFragment.prototype]);
}
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