根据祖师爷的回复,h 的含义如下: It comes from the term "hyperscript", which is commonly used in many virtual-dom implementations. "Hyperscript" itself stands for "script that generates HTML structures" because HTML is the acronym for "hyper-text markup language". 它来自术语“hyperscript”,该术语...
* @param defaultValue A default value, used until the first evaluation finishes * @returns A two-item tuple with the first item being a readonly ref to the computed value and the second item holding a boolean ref, indicating whether the async computed value is currently (re-)evaluated */ex...
functionvuePlugin(rawOptions = {}) {constoptions =shallowRef({compiler:null,// 省略...});return{name:"vite:vue",handleHotUpdate(ctx) {// ...},config(config) {// ..},configResolved(config) {// ..},configureServer(server) {// ..},buildStart() {// ..},asyncresolveId(id) {//...
},beforeUnmount(el, { value }) {setDisplay(el, value) } }functionsetDisplay(el: VShowElement, value: unknown):void{ el.style.display= value ? el[vShowOldKey] :'none'}// SSR vnode transforms, only used when user includes client-oriented render// function in SSRexportfunctioninitVShowF...
// 实际上这个 api 只是直接 return 传进来的 options,export default defineComponent({}) 是有点等价于export default {},目前看来这样做的最大作用只是限制 type, setup 必须是函数,props 必须是 undefined 或者 对象。 export function defineComponent(options: unknown) { return isFunction(options) ? { ...
toBe('value') expect(hasDummy).toBe(true) }) 对响应数据的原始数据的操作,不会触发监听函数 一个监听函数内允许引入另外一个监听函数。 每次effect执行返回的都是全新的监听函数,即使传递的相同的函数。 it('should return a new reactive version of the function', () => { function greet() { ...
(key==='length'&&isArray(target)){constnewLength=Number(newValue)depsMap.forEach((dep,key)=>{if(key==='length'||key>=newLength){deps.push(dep)}})}else{// schedule runs for SET | ADD | DELETEif(key!==void0){deps.push(depsMap.get(key))}// also run for iteration key on ADD...
if(isFunction(dir)){//处理函数类型指令 dir={ mounted:dir, updated:dir }asObjectDirective } bindings.push({ dir, instance, value, oldValue:void0, arg, modifiers }) } returnvnode } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. ...
function mount(rootContainer, isHydrate) {// createApp 中传递的参数在我们这里肯定是一个对象,所以这里不做创建虚拟节点的操作,而是模拟一个虚拟节点const vnode = {type: rootComponent,children: [],component: null,}// 通过 render 函数渲染虚拟节点render(vnode, rootContainer);// 返回 app 实例return ...
function effect<T = any>( fn: () => T, options: ReactiveEffectOptions = EMPTY_OBJ ): ReactiveEffect<T> { // 如果已经是effect,则重置 if (isEffect(fn)) { fn = fn.raw } // 创建effect const effect = createReactiveEffect(fn, options) // 如果不是惰性执行,先执行一次 if (!options....