36 lines
1.3 KiB
Markdown
36 lines
1.3 KiB
Markdown
@cheatsheetSection
|
|
Built-in directives
|
|
@cheatsheetIndex 2
|
|
@description
|
|
{@target ts}`import {NgIf, ...} from 'angular2/common';`{@endtarget}
|
|
{@target js}Available from the `ng.common` namespace{@endtarget}
|
|
{@target dart}Available using `platform_directives` in pubspec{@endtarget}
|
|
|
|
@cheatsheetItem
|
|
syntax:
|
|
`<section *ngIf="showSection">`|`*ngIf`
|
|
description:
|
|
Removes or recreates a portion of the DOM tree based on the showSection expression.
|
|
|
|
@cheatsheetItem
|
|
syntax:
|
|
`<li *ngFor="let item of list">`|`*ngFor`
|
|
description:
|
|
Turns the li element and its contents into a template, and uses that to instantiate a view for each item in list.
|
|
|
|
@cheatsheetItem
|
|
syntax:
|
|
`<div [ngSwitch]="conditionExpression">
|
|
<template [ngSwitchWhen]="case1Exp">...</template>
|
|
<template ngSwitchWhen="case2LiteralString">...</template>
|
|
<template ngSwitchDefault>...</template>
|
|
</div>`|`[ngSwitch]`|`[ngSwitchWhen]`|`ngSwitchWhen`|`ngSwitchDefault`
|
|
description:
|
|
Conditionally swaps the contents of the div by selecting one of the embedded templates based on the current value of conditionExpression.
|
|
|
|
@cheatsheetItem
|
|
syntax:
|
|
`<div [ngClass]="{active: isActive, disabled: isDisabled}">`|`[ngClass]`
|
|
description:
|
|
Binds the presence of CSS classes on the element to the truthiness of the associated map values. The right-hand side expression should return {class-name: true/false} map.
|