Javascript 实现一个类似于数据ID的系统_Javascript_Html

Javascript 实现一个类似于数据ID的系统

javascript html

Javascript 实现一个类似于数据ID的系统,javascript,html,Javascript,Html,我正在实现一个类似于DataReactID的系统（从头开始）。类似这样的内容：（与使用数据reactid的目的不完全相同）：到我能够创建一个解析HTML的JSON对象，但无法以更简单的方式完成我想要的事情，请您帮助我，用同样的方式 function mapDOM(element, json) { var treeObject = {}; // If string convert to document Node if (typeof elemen

我正在实现一个类似于DataReactID的系统（从头开始）。类似这样的内容：（与使用数据reactid的目的不完全相同）：

到

我能够创建一个解析HTML的JSON对象，但无法以更简单的方式完成我想要的事情，请您帮助我，用同样的方式

function mapDOM(element, json) {
    var treeObject = {};

    // If string convert to document Node
    if (typeof element === "string") {
        if (window.DOMParser) {
              parser = new DOMParser();
              docNode = parser.parseFromString(element,"text/xml");
        } else { // Microsoft strikes again
              docNode = new ActiveXObject("Microsoft.XMLDOM");
              docNode.async = false;
              docNode.loadXML(element); 
        } 
        element = docNode.firstChild;
    }

    //Recursively loop through DOM elements and assign properties to object
    var li=lj=lk=-1;
    function treeHTML(element, object) {
        ++li;
        object["type"] = element.nodeName;
        var nodeList = element.childNodes;
        if (nodeList != null) {
            if (nodeList.length) {
                object["content"] = [];
                for (var i = 0; i < nodeList.length; i++) {
                    ++lj;
                    if (nodeList[i].nodeType == 3) {
                        object["content"].push(nodeList[i].nodeValue);
                    } else {
                        object["content"].push({});
                        treeHTML(nodeList[i], object["content"][object["content"].length -1]);
                    }
                    document.getElementsByTagName(nodeList[i])[i].setAttribute("data-reactid","0."+i+"."+li+"."+lj);
                }
            }
        }
        if (element.attributes != null) {
            if (element.attributes.length) {
                object["attributes"] = {};
                for (var i = 0; i < element.attributes.length; i++) {
                    object["attributes"][element.attributes[i].nodeName] = element.attributes[i].nodeValue;
                }
            }
        }
    }
    treeHTML(element, treeObject);

    return (json) ? JSON.stringify(treeObject) : treeObject;
}

函数mapDOM（元素，json）{
var treeObject={}；
//如果字符串转换为文档节点
if（元素类型==“字符串”）{
if（window.DOMParser）{
parser=新的DOMParser（）；
docNode=parser.parseFromString（元素，“text/xml”）；
}否则{//微软又罢工了
docNode=newActiveXObject（“Microsoft.XMLDOM”）；
docNode.async=false；
loadXML（元素）；
} 
元素=docNode.firstChild；
}
//递归地循环DOM元素并为对象分配属性
var li=lj=lk=-1；
函数树HTML（元素、对象）{
++李,；
对象[“类型”]=element.nodeName；
var nodeList=element.childNodes；
if（节点列表！=null）{
if（节点列表长度）{
对象[“内容”]=[]；
对于（变量i=0；i

像那样吗
function processNode(node, id) {
    id = !id ? "0" : String(id);
    node.dataset.id = id;
    return {
        id: id,
        type: node.nodeName.toLowerCase(),
        content: processNodeList( node.childNodes, id + "." ),
        attributes: processAttributes( node.attributes )
    }
}

function processNodeList(nodes, prefix){
    prefix = !prefix ? "" : String(prefix);

    for(var out, i=0, j=0, len = (nodes && nodes.length)|0; i < len; ++i){
        var node = nodes[i], nt = node.nodeType;
        if(nt === 1){ //Element
            value = processNode(node, prefix + j++);
        }else if(nt === 3){ //Text-Node
            //especially &nbsp; should be kept, and not replaced on stringify
            var text = node.textContent.replace(/[\u00A0<>&\u00AD]/g, toHtmlEntity);

            /*
            //TODO: move that into a filter, applied when the Array is built
            //remove all-whitespace-nodes between two block-nodes like p,div,section,h1-h6
            if((i === 0 || i === nodes.length-1) && /^[\r\n\t ]*$/.test(text)){
                //remove whitespace at the beginning or the end of the node
                continue;
            }
            */

            //compact multiple spaces into a single one
            value = text.replace(/([\r\n\t ])+/g, "$1");
        }else{
            continue;
        }

        out || (out = []);
        out.push(value);
    }
    return out;
}

function processAttributes(attrs){
    for(var out, i = 0, len = (attrs && attrs.length)|0; i < len; ++i){
        var attr = attrs[i];
        if(attr.nodeName === "data-id") continue;
        out || (out = {});
        out[attr.nodeName] = attr.nodeValue;
    }
    return out;
}

function toHtmlEntity(c){
    switch(c.charCodeAt(0)){
        case 160: return "&nbsp;";
        case 38: return "&amp;";
        case 60: return "&lt;";
        case 62: return "&gt;";
        case 173: return "&shy;";
    }
    return c;
}

function mapDOM(element) {
    // If string convert to document Node
    if (typeof element === "string") {
        if (window.DOMParser) {
              parser = new DOMParser();
              docNode = parser.parseFromString(element,"text/xml");
        } else { // Microsoft strikes again
              docNode = new ActiveXObject("Microsoft.XMLDOM");
              docNode.async = false;
              docNode.loadXML(element); 
        }
        element = docNode.firstChild;
    }

    return processNode(element);
}


var tree = mapDOM(document.body);
console.log(JSON.stringify(tree, null, 4));

函数processNode（节点，id）{
id=！id？“0”：字符串（id）；
node.dataset.id=id；
返回{
id:id，
类型：node.nodeName.toLowerCase（），
内容：processNodeList（node.childNodes，id+”），
属性：processAttributes（node.attributes）
}
}
函数processNodeList（节点，前缀）{
前缀=！前缀？“：字符串（前缀）；
对于（var out，i=0，j=0，len=（nodes&&nodes.length）|0；i

function mapDOM(element, json) {
    var treeObject = {};

    // If string convert to document Node
    if (typeof element === "string") {
        if (window.DOMParser) {
              parser = new DOMParser();
              docNode = parser.parseFromString(element,"text/xml");
        } else { // Microsoft strikes again
              docNode = new ActiveXObject("Microsoft.XMLDOM");
              docNode.async = false;
              docNode.loadXML(element); 
        } 
        element = docNode.firstChild;
    }

    //Recursively loop through DOM elements and assign properties to object
    var li=lj=lk=-1;
    function treeHTML(element, object) {
        ++li;
        object["type"] = element.nodeName;
        var nodeList = element.childNodes;
        if (nodeList != null) {
            if (nodeList.length) {
                object["content"] = [];
                for (var i = 0; i < nodeList.length; i++) {
                    ++lj;
                    if (nodeList[i].nodeType == 3) {
                        object["content"].push(nodeList[i].nodeValue);
                    } else {
                        object["content"].push({});
                        treeHTML(nodeList[i], object["content"][object["content"].length -1]);
                    }
                    document.getElementsByTagName(nodeList[i])[i].setAttribute("data-reactid","0."+i+"."+li+"."+lj);
                }
            }
        }
        if (element.attributes != null) {
            if (element.attributes.length) {
                object["attributes"] = {};
                for (var i = 0; i < element.attributes.length; i++) {
                    object["attributes"][element.attributes[i].nodeName] = element.attributes[i].nodeValue;
                }
            }
        }
    }
    treeHTML(element, treeObject);

    return (json) ? JSON.stringify(treeObject) : treeObject;
}

function processNode(node, id) {
    id = !id ? "0" : String(id);
    node.dataset.id = id;
    return {
        id: id,
        type: node.nodeName.toLowerCase(),
        content: processNodeList( node.childNodes, id + "." ),
        attributes: processAttributes( node.attributes )
    }
}

function processNodeList(nodes, prefix){
    prefix = !prefix ? "" : String(prefix);

    for(var out, i=0, j=0, len = (nodes && nodes.length)|0; i < len; ++i){
        var node = nodes[i], nt = node.nodeType;
        if(nt === 1){ //Element
            value = processNode(node, prefix + j++);
        }else if(nt === 3){ //Text-Node
            //especially &nbsp; should be kept, and not replaced on stringify
            var text = node.textContent.replace(/[\u00A0<>&\u00AD]/g, toHtmlEntity);

            /*
            //TODO: move that into a filter, applied when the Array is built
            //remove all-whitespace-nodes between two block-nodes like p,div,section,h1-h6
            if((i === 0 || i === nodes.length-1) && /^[\r\n\t ]*$/.test(text)){
                //remove whitespace at the beginning or the end of the node
                continue;
            }
            */

            //compact multiple spaces into a single one
            value = text.replace(/([\r\n\t ])+/g, "$1");
        }else{
            continue;
        }

        out || (out = []);
        out.push(value);
    }
    return out;
}

function processAttributes(attrs){
    for(var out, i = 0, len = (attrs && attrs.length)|0; i < len; ++i){
        var attr = attrs[i];
        if(attr.nodeName === "data-id") continue;
        out || (out = {});
        out[attr.nodeName] = attr.nodeValue;
    }
    return out;
}

function toHtmlEntity(c){
    switch(c.charCodeAt(0)){
        case 160: return "&nbsp;";
        case 38: return "&amp;";
        case 60: return "&lt;";
        case 62: return "&gt;";
        case 173: return "&shy;";
    }
    return c;
}

function mapDOM(element) {
    // If string convert to document Node
    if (typeof element === "string") {
        if (window.DOMParser) {
              parser = new DOMParser();
              docNode = parser.parseFromString(element,"text/xml");
        } else { // Microsoft strikes again
              docNode = new ActiveXObject("Microsoft.XMLDOM");
              docNode.async = false;
              docNode.loadXML(element); 
        }
        element = docNode.firstChild;
    }

    return processNode(element);
}


var tree = mapDOM(document.body);
console.log(JSON.stringify(tree, null, 4));