Angular 学习之路

在input控件里输入一个33后，在生成的html里，能看到shadow-root节点下的div标签，里面包含了33的值。

Angular Component html里加了方括号的Directive，浏览器是无法识别的，在Angular core.js里，在执行Component template实现函数时，会调用Angular的ɵɵproperty函数，将中括号包裹的Angular指令展开：Upd...

https://angular.the objects that live in the component to store and manage the form, and the visualization of the form that lives in the tem...

import { FocusDirective } from './focus.import { KeyboardFocusService } from '.TestBed.}).fixture = TestBed.component = fixture.fixture.serv...

首先创建一个闭包函数this.plan，存储传入的期望返回值。this.plan是SpyStrategy的一部分。callThrough的意思是，仍然监控函数的执行，只是wrapper执行时，返回原始函数调用的结果。

语法：expect(传入一个被spied后的方法).el.spy函数的and属性就是SpyStrategy，其Plan属性返回的就是andReturnValue里指定的值。calls属性就是调用tracker.

语义：希望service.findFirstFocusable方法被监控，同时其调用之后，返回el变量。这两个参数去调用spyRegistry.spyOn方法。其中and指向spy strategy，calls指向调用监控器 tracker.

触发RefreshView：refreshView的方法实现里，会多处调用executeCheckHook方法：每个待执行的hook方法的名称都能在注释里找到：例如：execute pre-order

* Copyright Google LLC All Rights Reserved.* found in the LICENSE file at https://angular.* Bindings for pure functions are stored after reg...

* e.g. for (let i = 0; i < dataValue.

* Processes a view in update mode. * - refreshing child (embedded and component) views.setBindingIndex(tView.const preOrderCheckHooks = tVie...

this.detectChangesInRootView(this.checkNoChangesInRootView(this.

const result = this.testModuleRef.injector.

* Define a single spec. A spec should contain one or more {@link expect|expectations} that test the state of the code.* A spec whose expecta...

getJasmineRequireObj().* Callback passed to parts of the Jasmine base interface.* By default Jasmine assumes this function completes synchro...

默认策略为：ChangeDetectionStrategy.* Type of the Directive metadata.const ɵ2$1 = (c = {}) => (Object.assign({ changeDetection: ChangeDetectionStr...

_zone.this.this.this.this.this.this.this.this.this.this.this.* Get a list of component types registered to this application.* This list is p...

以this.* given by the `elementRef`.return this.elementRef.

每个施加在HTML元素上的Directive，运行时都会生成一个新的实例。

The problem with async is that we still have to introduce real waiting in our tests, and this can make our tests very slow.Async的一个缺陷是，我们仍然需...