时间:2023-06-07 02:15:02 | 来源:网站运营
时间:2023-06-07 02:15:02 来源:网站运营
web技术支持| 简单实现Vue第一章:模板编译:function Vue(option) {this.$option = option;}
Vue.prototype.$mount = function(element) {const rootNode = document.getElementById(element);if (rootNode) {this.$rootNode = rootNode;} else {throw new Error('$mount Receives an ID node');}if (this.$option.template) {this.$render();} else {throw new Error('The lack of the template');}return this;}Vue.prototype.$render = function render() {this.$AST = this.$templateCompilation(this.$option.template);}Vue.prototype.$templateCompilation = function templateCompilation(html) {const AST = {attrs: [],children: []};function start(AST) {let result = html.match(startReg.startTag);AST.tagName = result[0];cuttingHTML(result);while (html.match(startReg.endTag).index) {result = html.match(startReg.startAttrs);AST.attrs.push({key: result[0].split('=')[0],value: result[1]});cuttingHTML(result);}cuttingHTML(html.match(startReg.endTag));text(AST);return AST;}function text(parent) {while (html && html.match(textReg.endTag).index) {let result = html.match(textReg.startTag);if (result && !result.index) {parent.children.push(start(JSON.parse(JSON.stringify(AST))));} else {result = html.match(textReg.text);parent.children.push(result[0]);cuttingHTML(result);}}cuttingHTML(html.match(textReg.endTag));}function cuttingHTML(result) {html = html.substr(result.index + result[0].length);}return start(JSON.parse(JSON.stringify(AST)));}
const startReg = {startTag: /[/w/d]+/,startAttrs: /[^/s=]+/s*=/s*('[^'>]*'|"[^">]*")/,endTag: //s*>/};const textReg = {startTag: //s*<[/w/d]+/,text: /[^<]+/,endTag: //s*<//[a-z0-9]+>/i};
<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Document</title><script src="./reg.js"></script><script src="./vue.js"></script><style>.box {display: flex;}img {width: 200px;height: 100%;margin-right: 20px;}.content {line-height: 27px;font-size: 14px;}.content span {color: #000;font-weight: 600;}</style></head><body><div id="app"></div><script>const template = `<div class='box' style='width: 900px;height: 300px;border: 1px solid green;margin: 150px auto;padding: 20px;box-sizing: border-box'><img src='./touxiang.webp'></img><div class='content'>您好,我是 <span>{{ name }}</span>,毕业于 <span>{{ university.name }}</span> 大学 <span>{{ university.professional }}</span> 专业。今天应聘的是贵公司的xxxx岗位。在校期间,我在学校的学生会/团总支/社团/班级/寝室担任xxxx职务。期间,我参加xxx活动。课余,我还参加了xxxx的实践活动。我的兴趣爱好是xxxx,擅长xxxx。我对贵公司和xxxx这个岗位十分感兴趣,希望您能给我一个机会。<br></br><br></br>您好,我是 <span>{{ name }}</span>,毕业于 <span>{{ university.name }}</span> 大学 <span>{{ university.professional }}</span> 专业。今天应聘的是贵公司的xxxx岗位。在校期间,我在学校的学生会/团总支/社团/班级/寝室担任xxxx职务。期间,我参加xxx活动。课余,我还参加了xxxx的实践活动。我的兴趣爱好是xxxx,擅长xxxx。我对贵公司和xxxx这个岗位十分感兴趣,希望您能给我一个机会。</div></div>`;const vn = new Vue({template,data() {return {name: 'Jack',age: 23,university: {name: 'Shanghai Jiao Tong',professional: 'Computer information'}}}}).$mount('app');console.log(vn);</script></body></html>
关键词:模板,编译,技术,支持,简单,实现