例如,void functionName()调用functionName函数,但不使用其返回值。 阐述在Vue3中为何会出现“void function return value is used”的警告: 在Vue3中,如果你在一个期望得到返回值的地方调用了void函数,IDE(如IDEA)可能会发出警告,提示你“void function return value is used”。这是因为void函数的设计初衷就是...
//diff 函数,对比两棵树functiondiff(oldTree, newTree) {varindex = 0//当前节点的标志varpatches = {}//用来记录每个节点差异的对象dfsWalk(oldTree, newTree, index, patches)returnpatches }//对两棵树进行深度优先遍历functiondfsWalk(oldNode, newNode, index, patches) {varcurrentPatch =[]if(typeof...
functionvuePlugin(rawOptions = {}) {constoptions =shallowRef({compiler:null,// 省略...});return{name:"vite:vue",handleHotUpdate(ctx) {// ...},config(config) {// ..},configResolved(config) {// ..},configureServer(server) {// ..},buildStart() {// ..},asyncresolveId(id) {//...
if (deviceIsIOS&& targetElement.setSelectionRange && targetElement.type.indexOf('date') !== 0 && targetElement.type !== 'time' && targetElement.type !== 'month') { length = targetElement.value.length; targetElement.focus(); targetElement.setSelectionRange(length, length); } else { target...
`vue-loader was used without the corresponding plugin. Make sure to include VueLoaderPlugin in your webpack config.` VueLoaderPlugin定义在vue-loader\lib\plugin-webpack4.js: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 constid='vue-loader-plugin'constNS='vue-loader'classVueLoaderPlugin{ap...
functionchangeLocation(to:HistoryLocation,state:StateEntry,replace:boolean):void{/** * if a base tag is provided, and we are on a normal domain, we have to * respect the provided `base` attribute because pushState() will use it and ...
Data in kernel space must be copied before it can be used in expressions or passed as parameters to a Vue function. If an exception occurs while the process is running this function, for example, when a bad kernel address is passed to the function, the ProbeVue session is aborted with an...
Used to create before and after navigation guards list */ export function useCallbacks<T>() { let handlers: T[] = [] function add(handler: T): () => void { handlers.push(handler) return () => { const i = handlers.indexOf(handler) if (i > -1) handlers.splice(i, 1) } }...
</template>import{ref}from'vue'import{useDraggable}from'vue-draggable-plus'constel=ref<HTMLElement|null>(null)constlist=ref([{name:'Joao',id:1},{name:'Jean',id:2},{name:'Johanna',id:3},{name:'Juan',id:4}])//The return value is an object, which contains some methods, such...
msg // string | undefined // bindings returned from setup() can be used for type inference // in templates const count = ref(0) return { count } } }) defineComponent 从概念上来说和 2.x 的 Vue.extend 是一样的,但在 3.0 中它其实是单纯为了类型推导而存在的,内部实现是个 noop(直接...