如果Template Variable 标记的是组件,那 query 出来的是组件实例,如果标记的是 element(哪怕 element 上有 apply 指令),query 出来的依然会是 ElementRef。 这是Angular 默认的规则。 那如果我们想拿的和默认的不一样呢?比如 Template Variable 虽然标记在组件上,但我想拿 ElementRef,怎么办? 这时,我们可以使用 re...
从这里可以看出它如何从每一层的 Template Context 抽出 value 赋值 let-variable 和最终的 binding to DOM。 ng-template 用于 Dynamic Component 的 Content Projection 在上一篇Dyanmic Component中,我们有一个 Content Projection 的例子,里面使用了原生的 template DOM Manipulation。 这里补上一个 ng-template 的...
也就是说,NgFor指令所在的<ng-template>上可以接收如下模板输入变量,这些变量均由NgFor指令来传递: <ng-templatelet-item="$implicit"let-array="ngForOf"let-idx="index"let-length="count"let-first="first"let-last="last"let-even="even"let-odd="odd"></ng-template> 让我们忘掉微语法,只根据NgFor结...
import { Component, OnInit } from '@angular/core'; @Component({ selector: 'app-dynamic-form', template: ` <formly-form [form]="form" [fields]="fields"></formly-form> `, }) export class DynamicFormComponent implements OnInit { form = new FormGroup({}); fields: any[]; ngOn...
(默认 true) "no-unused-variable": false, // 是否允许无用的变量存在 (新增) "no-use-before-declare": true, "no-unsafe-finally": true, "no-for-in-array": true, "no-var-keyword": true, "object-literal-sort-keys": false, "one-line": [ true, "check-open-brace", "check-catch"...
$ ng generate component simple-form --inline-template --inline-style # Or $ ng g c simple-form -it -is # 表示新建组件,该组件使用内联模板和内联样式 在命令行窗口运行以上命令后,将输出以下内容: installing component create src/app/simple-form/simple-form.component.spec.ts ...
The basics to actually get a “TemplateRef” variable in the first place looks like so. Let’s say I create a component called “ParentComponent”. I’m going to create the HTML (thus far) looking like so : <ng-template #myTemplate>This is my Template</ng-template> All this...
Angular structural directive for sharing data as local variable into html component template. - nigrosimone/ng-let
With@let, the above template example can now be revised to: @let firstName = user.firstName;{{ firstName }} {{ user.lastName }}Welcome, {{ firstName }}! HTML In the above example, the@letsyntax declares afirstNamevariable, which contains the value of the user’s first name. The...
| [](https://github.com/angular/angular/commit/81a287a79afc16d43c0fd24d7aea54be4414940a) | avoid error in template parser for tag names that can occur in object prototype (#52225) | ...