题解 | #dom节点转成json数据#

        function dom2json() {
            let root = document.getElementById('jsContainer');
            return JSON.parse(JSON.stringify(analysisDom(root)))
        }
        function analysisDom(dom) {
            let templete;
            if (dom.nodeType == 1) {
                templete = {
                    tag: '',
                    attributes: {},
                    children: []
                };
                templete.tag = dom.localName;
                let len = dom.attributes.length;
                for (let i = 0; i < len; i++) {
                    templete.attributes[dom.attributes.item(i).nodeName] = dom.getAttribute(dom.attributes.item(i).nodeName);
                };
                let cLen = dom.childNodes.length
                if (cLen) {
                    for (let i = 0; i < cLen; i++) {
                        if(analysisDom(dom.childNodes[i])){
                            templete.children.push(analysisDom(dom.childNodes[i]))
                        }
                    }
                }
            } else if (dom.nodeType == 3) {
                let data = dom.textContent.trim();
                if (data) {
                    templete = {
                        tag: 'text',
                        content: data
                    }
                }
            }
            return templete
        }