题解 | #dom节点转成json数据#

function dom2json() {
    const container = document.querySelector("#jsContainer");
    
    function createObj (dom) {
        let obj = {
            "tag": dom.tagName.toLowerCase(),
            "attributes": {},
            "children": []
        }
        for (let i = 0; i < dom.attributes.length; i++) {
            const { name, value } = dom.attributes[i];
            obj.attributes[name] = value;            
        }
        for (let i = 0; i < dom.childNodes.length; i++) {
            if (!dom.childNodes[i].tagName) {
               if (!dom.childNodes[i].data.trim()) continue;
               obj.children.push({
                   "tag": "text",
                   "content": dom.childNodes[i].data.trim()
               })
            } else {
                obj.children.push(createObj(dom.childNodes[i]))
            }
        }
        return obj;
    }
    
    return createObj(container);
}