vuex

What is the best way to create a constant, that can be accessible from entire application in VueJs ?

由 房东的猫 提交于 2020-01-03 09:29:27
问题 I can create a constant through a store in my vuejs application, but i don't think it is a good practice.what is other way to do the same? 回答1: You can always define a variable outside of the Vue app scope and use it throughout the application. However, if you are using any bundler like Webpack/Browserify/etc. you can do the same but you'd have to import it into every component using it. An example for that can be found below. //const.js export default { c1: 'Constant 1', c2: 'Constant 2' } /

What is the best way to create a constant, that can be accessible from entire application in VueJs ?

由 眉间皱痕 提交于 2020-01-03 09:29:12
问题 I can create a constant through a store in my vuejs application, but i don't think it is a good practice.what is other way to do the same? 回答1: You can always define a variable outside of the Vue app scope and use it throughout the application. However, if you are using any bundler like Webpack/Browserify/etc. you can do the same but you'd have to import it into every component using it. An example for that can be found below. //const.js export default { c1: 'Constant 1', c2: 'Constant 2' } /

新年红包大派送，做个红包兑换小程序大家乐一乐，红包小程序小结

由 若如初见. 提交于 2020-01-02 23:54:22
最近做了一个红包兑换小程序，遇到了一些问题这里做一下总结。 1、需求：回流用户在game客户端获取到口令，然后在小程序这边输入口令兑换红包，成功之后钱会发到用户微信账户里。 2、流程：若未授权，显示授权按钮。点击授权登录，授权成功后获取到私密字段iv和encryptedData，调取登陆接口，错误则提示相关信息，正确则跳转校验姓名和shenfenzheng的页面，校验通过就调取提现接口，成功则提示提现成功，同时显示生成分享图按钮。分享图由用户昵称，头像，二维码，提现金额等等组成。 3、框架：uniapp 分享图的问题 1、 measureText 获取宽度的时候，传入的参数如果是数字，则会返回0。 let money = 10; //这里需要把数字转成字符串 ctx.measureText(money).width; 2、绘制图片的时候不要忘了先使用 getImageInfo 转成临时地址，再 drawImage ，如果不经过这步，虽然开发者工具上看到是正常的，但是真机是显示不了。 3、需要绘制微信头像的时候，要在后台配置downloadFile合法域名 https://wx.qlogo.cn 4、最初背景图大概170KB，尺寸750*1334，最终绘制出来的分享图太大了。解决方法： 把背景图片尽量再压缩，最终是60多KB。 调 canvasToTempFilePath 的时候

Vuex store is undefined in NUXT middleware

由 若如初见. 提交于 2020-01-01 09:09:07
问题 I'm practicing NUXT and from tutorial its working well. mine fail when entering the NUXT middleware. the logic is if page is redirecting to other page it will enter middleware and fetch the result using axios. middleware/search.js import axios from 'axios'; export default function ({ params, store }) { console.log(store) return axios.get(`https://itunes.apple.com/search?term=~${params.id}&entity=album`) .then((response) => { console.log(response.data.results); store.commit('add', response

vue & vuex getter vs passing state via props

由 故事扮演 提交于 2020-01-01 04:07:07
问题 I have seen many people advising to pass state to components via props rather than accessing the vue state directly inside the component in order to make it more reusable. However, if I do this consistently this would mean that only the routes root component would communicate with the store and all data needs to be passed through the nested hierarchy in order to get the final component. This seems like it would easily cause a mess: Dashboard Profile Billing History CreditCards CreditCard How

Vue.js: Nuxt error handling

由 廉价感情. 提交于 2020-01-01 03:55:05
问题 Struggling a bit to set up error handling with vuex. There seems to be quite a few ways to do so and little documentation on proper error handling. I've been experimenting with four alternatives, though I haven't found a satisfying solution yet. Alternative 1 - Catching and processing errors on component in pages/login.vue: export default { methods: { onLogin() { this.$store.dispatch('auth/login', { email: this.email, password: this.password, }).then(() => { this.$router.push('/home'); })

十、Vue：Vuex实现data(){}内数据多个组件间共享

由 独自空忆成欢 提交于 2019-12-31 23:23:36
一、概述 官方文档：https://vuex.vuejs.org/zh/installation.html 1.1vuex有什么用 Vuex：实现data(){}内数据多个组件间共享一种解决方案（类似react的redux） 1.2什么情况下使用vuex 虽然 Vuex 可以帮助我们管理共享状态，但也附带了更多的概念和框架。这需要对短期和长期效益进行权衡。 如果您不打算开发大型单页应用，使用 Vuex 可能是繁琐冗余的。确实是如此——如果您的应用够简单，您最好不要使用 Vuex。一个简单的 global event bus 就足够您所需了。但是，如果您需要构建是一个中大型单页应用，您很可能会考虑如何更好地在组件外部管理状态，Vuex 将会成为自然而然的选择。 1.3Vuex状态管理 view ->(dispatch) Action ->(Commit) Mutations ->(Mutate) State -> View 注意：Action不是必需品，如果有异步操作才可能用到Action，否则可以不使用 1.4Actions： Action 提交的是 mutation，而不是直接变更状态。 Action 可以包含任意异步操作。 二、安装及使用 官方文档：https://vuex.vuejs.org/zh/installation.html 安装方法1，npm cnpm

How do I break up my vuex file?

由 回眸只為那壹抹淺笑 提交于 2019-12-31 21:44:30
问题 I have a vuex file with a growing mass of mutators, but I'm not sure of the correct way of splitting it out into different files. Because I have: const store = new Vuex.Store({ vuex stuff }) and then below that my main Vue app declaration: const app = new Vue({ stuff }) I'm happy working with Vue components and have lots of those already, but this is stuff at the top level of the app and I'm not sure how to break it apart. Any advice appreciated. 回答1: For those who would like to break up the

How do I break up my vuex file?

由 馋奶兔 提交于 2019-12-31 21:43:52
问题 I have a vuex file with a growing mass of mutators, but I'm not sure of the correct way of splitting it out into different files. Because I have: const store = new Vuex.Store({ vuex stuff }) and then below that my main Vue app declaration: const app = new Vue({ stuff }) I'm happy working with Vue components and have lots of those already, but this is stuff at the top level of the app and I'm not sure how to break it apart. Any advice appreciated. 回答1: For those who would like to break up the

Difference between Asyncdata vs Fetch

由 ♀尐吖头ヾ 提交于 2019-12-31 20:30:47
问题 What is the exact difference between fetch and async data. The official documentation says the following: asyncData You may want to fetch data and render it on the server-side. Nuxt.js adds an asyncData method that lets you handle async operations before setting the component data. asyncData is called every time before loading the component (only for page components). It can be called from the server-side or before navigating to the corresponding route. This method receives the context object
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