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vuejs router中如何让参数optional

vuejs router中如何让参数optional

只需要在后面添加 ? 就会使参数 optional,例如 { path: '/offers/:member?', ... }, ……

vuejs如何在子组件中更新parent data

vuejs如何在子组件中更新parent data

vuejs如何在子组件中更新parent data? 参考如下例子实现 Vue.component('child', { template: '#child', //The child has a prop named 'value'. v-model will automatically bind to this prop pro……

[Vue warn]: Error in created hook: “Error: Cookie showLanguageInfo not exist.”

[Vue warn]: Error in created hook: “Error: Cookie showLanguageInfo not exist.”

自定义抛出组件created()异常的方法。 throw new Error(`Cookie ${cookieName} not exist.`); Vue控制台报错: [Vue warn]: Error in created hook: “Error: Cookie showLanguageInfo not exist.” 解决……

vuejs加载完成后如何调用方法?

vuejs加载完成后如何调用方法?

我正在尝试在组件安装后调用方法,但似乎在将数据馈送到组件之前就触发了该方法。 我得到的错误: [Vue warn]: Error in mounted hook: "ReferenceError: url_refresh is not defined" 我的组件看起来像这样: export default { props: { ……

vuejs通过v-for遍历数组赋值

vuejs通过v-for遍历数组赋值

实现方式很简单,参考下例: 我的vuex状态中有一个颜色数组,在我的组件中,我想为来自v-for的每个元素指定每种颜色。 // state state: { APIData: { userInfo: {}, allClasses: [ { subject: 'subject1',……

vuejs如何调用声明的常量数据?

vuejs如何调用声明的常量数据?

Vue组件中使用一些不变的数据。以下代码报错: [Vue warn]: Property or method “numbers” is not defined on the instance but referenced during render. Make sure that this property is reactive, ……

Failed to mount component: template or render function not defined.

Failed to mount component: template or render function not defined.

报错: Failed to mount component: template or render function not defined. 模板代码: <template> <div id="app"> <button v-on:click="addAnnotation()">Add annotatio……

[Vue warn]: Failed to mount component: template or render function not defined

[Vue warn]: Failed to mount component: template or render function not defined

收到报错: [Vue warn]: Failed to mount component: template or render function not defined. (found in root instance) 这是我的主要javascript文件: import Vue from 'vue' new Vue({ el: '#app' ……

Component template should contain exactly one root element. If you are using v-if on multiple elements, use v-else-if to chain them instead.

Component template should contain exactly one root element. If you are using v-if on multiple elements, use v-else-if to chain them instead.

执行 $ npm run watch报错: Component template should contain exactly one root element. If you are using v-if on multiple elements, use v-else-if to chain them instead. 模板代码 <template……

Vue-cli 中如何关闭ESLint

Vue-cli 中如何关闭ESLint

Vue-cli 中如何关闭ESLint preLoaders: [ { test: /\.vue$/, loader: 'eslint', include: projectRoot, exclude: /node_modules/ }, { test: /\.js$/, loade……