ChromeDriver installation failed Error with http(s) request: Error: connect ETIMEDOUT 172.217.160.80
ChromeDriver 被墙了
方法一： npm install chromedriver --chromedriver_cdnurl=http://cdn.npm.taobao.org/dist/chromedriver
方法二： cnpm install chromedriver
方法三： npm install cross-env --save-dev
Vue支持sass
安装node-sass 安装sass-loader 安装style-loader 有些人安装的是 vue-style-loader 其实是一样的 cnpm install node-sass --save-dev cnpm install sass-loader --save-dev cnpm install style-loader --save-dev
1.页面上有容器
<div id="app"> </div>
2.初始化 template模板一定要有最外层根节点div 不然会报错
new Vue({
el: "#app",
template:'<div>{{name}}</div>',
data: function(){
return {
name: "张三"
}
}
})
3. template,filters,methods 完整示例
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>练习</title>
<script src="vue.js"></script>
</head>
<body>
<div id="app">
</div>
</body>
</html>
<script type="text/javascript">
Vue.component("submit-button",{
template: `
<input type="button" name="" value="我是公共按钮" />
`
});
Vue.filter("globalReverse",function(dataStr,arg1){
return arg1 + ':' + dataStr.split('').reverse().join('');
});
var myHeader = ("myHeader",{
template: `
<div>
{{title}}, 我是头部;<submit-button/>
</div>
`,
props: ["title"]
});
var myBody = ("myBody",{
template: `
<div>
<button v-on:click="alertMsg('aa')">点我弹出消息</button>
<submit-button/>
</div>
`,
methods:{
alertMsg: function(arg1) {
alert(arg1);
}
}
})
new Vue({
el: "#app",
components:{
"myHeader": myHeader,
"myBody": myBody
},
template: `
<div>
<myHeader v-bind:title="headerTitle" />
<myBody>
</myBody>
<p>{{headerTitle}}</p>
<p>{{headerTitle | reverserStr}}</p>
<p>{{headerTitle | reverserStrWithParams("a1","b2")}}</p>
<p>{{headerTitle | globalReverse("language")}}</p>
<input type="text" name="" v-model="headerTitle">
</div>
`,
data: function() {
return {
headerTitle: "Hello World"
}
},
filters: {
reverserStr: function(dataStr) {
return dataStr.split('').reverse().join('');
},
reverserStrWithParams: function(dataStr,arg1,arg2) {
return dataStr.split('').reverse().join('') + ';arg1='+arg1+";arg2="+arg2;
}
}
})
</script>