triggerAsyncId, resource) {const currentResource = executionAsyncResource();// Value of currentResource is always a non null objectfor (let i = ; i < storageList.length; ++i) { storageList[i]._propagate(resource, currentResource); } }});classAsyncLocalStorage{constructor() {this.k...
(1)内置执行器。 Generator 函数的执行必须靠执行器,所以才有了co模块,而async函数自带执行器。也就是说,async函数的执行,与普通函数一模一样,只要一行。 asyncReadFile(); 上面的代码调用了asyncReadFile函数,然后它就会自动执行,输出最后结果。这完全不像 Generator ...
AI代码解释 // AsyncLocalStorage.jsconstasyncHooks=require('async_hooks');const{executionAsyncId}=asyncHooks;classAsyncLocalStorage{constructor(){this.storeMap=newMap();// {1}this.createHook();// {2}}createHook(){constctx=this;consthooks=asyncHooks.createHook({init(asyncId,type,triggerAsyncId)...
AI代码解释 <task:annotation-driven executor="exceptionHandlingTaskExecutor"scheduler="defaultTaskScheduler"/><bean id="exceptionHandlingTaskExecutor"class="nl.jborsje.blog.examples.ExceptionHandlingAsyncTaskExecutor"><constructor-arg ref="defaultTaskExecutor"/></bean><task:executor id="defaultTaskExecutor"...
constructor() { this.cachePromise = caches.open('avatars'); } async getAvatar(name) { const cache = await this.cachePromise; return cache.match(`/avatars/${name}.jpg`); } } const storage = new Storage(); storage.getAvatar('jake').then(…); ...
class Person { constructor(name, age, friends) { this.name = name this.age = age this.friends = friends } [Symbol.iterator]() { let index = 0 return { next: () => { if (index < this.friends.length) { return { done: false, value: this.friends[index++] } } else { return ...
//Generator函数function*chain(){yield'a';console.log('sss');yield'b';yield'c';return'end';// 这两行代码不会执行console.log("sss附件打开")yield99; }letexp=chain()// exp的constructor的值是Function [GeneratorFunction] {}【在js里对象的constructor就类似object的具体类型。。】console.log(type...
● 第二种,相当于OC中的方法重写,重写constructor方法 简略 ● ES6中的let命令,声明变量,用法和var差不多 但是let是为JavaScript新增了块级作用域,ES5中是没有块级作用域的,并且var有变量提升的概念,但是在let中,使用的变量一定要进行声明; ● ES6中变量的结构赋值,包括对象解构和数组解构以及混合解构,比如:var...
Constructores públicos NombreDescripción CAsyncMonikerFile::CAsyncMonikerFileConstruye un objetoCAsyncMonikerFile. Métodos públicos Expandir tabla NombreDescripción CAsyncMonikerFile::CloseCierra y libera todos los recursos. CAsyncMonikerFile::GetBindingRecupera un puntero al enlace de transferencia asin...
AsyncResource { constructor() { super('my-resource'); } close() { this.emitDestroy(); } } function p() { return new Promise(r => { setTimeout(() => { r() }, 1000) }) } let resource = new MyResource; resource.runInAsyncScope(async () => { console.log('hello') await ...