Vue.js

问题 My scenario is a chat app with the following setup in Firestore channels (collection) id (doc) messages (collection) {channelObj} id (doc) messages (collection) {channelObj} etc I've successfully attached a listener to the sub collection messages although I am having trouble detaching that listener, so when I switch from and to chat channels I get duplicate entries as the listeners keep stacking. Here's the script block from my vue file <script> import firestore from 'firebase/firestore'

问题 My scenario is a chat app with the following setup in Firestore channels (collection) id (doc) messages (collection) {channelObj} id (doc) messages (collection) {channelObj} etc I've successfully attached a listener to the sub collection messages although I am having trouble detaching that listener, so when I switch from and to chat channels I get duplicate entries as the listeners keep stacking. Here's the script block from my vue file <script> import firestore from 'firebase/firestore'

问题 My scenario is a chat app with the following setup in Firestore channels (collection) id (doc) messages (collection) {channelObj} id (doc) messages (collection) {channelObj} etc I've successfully attached a listener to the sub collection messages although I am having trouble detaching that listener, so when I switch from and to chat channels I get duplicate entries as the listeners keep stacking. Here's the script block from my vue file <script> import firestore from 'firebase/firestore'

问题 I have a renderless component in JavaScript that I am trying to convert to TypeScript. I'm running into errors declaring the render function in a Vue.extend -ed component: (method) ComponentOptions<Vue, unknown, unknown, unknown, never[], Record<never, any>>.render?(createElement: CreateElement, hack: RenderContext<Record<never, any>>): VNode No overload matches this call. The last overload gave the following error. Argument of type '{ render(): void; }' is not assignable to parameter of type

问题 I have a renderless component in JavaScript that I am trying to convert to TypeScript. I'm running into errors declaring the render function in a Vue.extend -ed component: (method) ComponentOptions<Vue, unknown, unknown, unknown, never[], Record<never, any>>.render?(createElement: CreateElement, hack: RenderContext<Record<never, any>>): VNode No overload matches this call. The last overload gave the following error. Argument of type '{ render(): void; }' is not assignable to parameter of type

问题 Background: I'm building an SSR website using Nuxt. I want to run a script to fix some typography issues (orphaned text in headers). I can't do this UNTIL AFTER the DOM is rendered. How can I implement this function once so it runs after each page's DOM is rendered? It can be either in the Router or in a Nuxt Layout, or elsewhere. What I've tried: In my layout.vue , Mounted() only runs on the first load (as expected) and adding $nextTick doesn't seem to affect that. This is even true for

问题 Background: I'm building an SSR website using Nuxt. I want to run a script to fix some typography issues (orphaned text in headers). I can't do this UNTIL AFTER the DOM is rendered. How can I implement this function once so it runs after each page's DOM is rendered? It can be either in the Router or in a Nuxt Layout, or elsewhere. What I've tried: In my layout.vue , Mounted() only runs on the first load (as expected) and adding $nextTick doesn't seem to affect that. This is even true for

问题 Background: I'm building an SSR website using Nuxt. I want to run a script to fix some typography issues (orphaned text in headers). I can't do this UNTIL AFTER the DOM is rendered. How can I implement this function once so it runs after each page's DOM is rendered? It can be either in the Router or in a Nuxt Layout, or elsewhere. What I've tried: In my layout.vue , Mounted() only runs on the first load (as expected) and adding $nextTick doesn't seem to affect that. This is even true for

问题 In Vue.js, a component does re-render(update) when some data changes. Sometimes the re-render frequency is too often and i want to find out which data's change cause this re-render. How to find out the changed data causing the re-render? 回答1: Using deep-diff and a simple watcher, you can easily find the difference between a previous copy of your vm data. new Vue({ el: "#app", data: { counter: 0 }, mounted() { let oldData = JSON.parse(JSON.stringify(this.$data)); this.$watch(vm => vm.$data,

问题 I've got an array of objects: productos[] , I use this to populate the v-datatable . I've been trying to add the search texfield such as the Vuetify documentation says. I've added this but it only works (for some reason) with the headers that has numbers and it doesn't work for example when you type a string. I think i'm doing something wrong. Search textfield: <v-text-field v-model="search" append-icon="search" label="Search" single-line hide-details ></v-text-field> v-datatable <v-data