2.3 KiB
@cheatsheetSection Template syntax @cheatsheetIndex 1 @description
@cheatsheetItem
<input [value]="firstName">|[value]
Binds property value to the result of expression firstName.
@cheatsheetItem
<div [attr.role]="myAriaRole">|[attr.role]
Binds attribute role to the result of expression myAriaRole.
@cheatsheetItem
<div [class.extra-sparkle]="isDelightful">|[class.extra-sparkle]
Binds the presence of the css class extra-sparkle on the element to the truthiness of the expression isDelightful.
@cheatsheetItem
<div [style.width.px]="mySize">|[style.width.px]
Binds style property width to the result of expression mySize in pixels. Units are optional.
@cheatsheetItem
<button (click)="readRainbow($event)">|(click)
Calls method readRainbow when a click event is triggered on this button element (or its children) and passes in the event object.
@cheatsheetItem
<div title="Hello {{ponyName}}">|{{ponyName}}
Binds a property to an interpolated string, e.g. "Hello Seabiscuit". Equivalent to:
<div [title]="'Hello' + ponyName">
@cheatsheetItem
<p>Hello {{ponyName}}</p>|{{ponyName}}
Binds text content to an interpolated string, e.g. "Hello Seabiscuit".
@cheatsheetItem
<my-cmp [(title)]="name">|[(title)]
Sets up two-way data binding. Equivalent to: <my-cmp [title]="name" (title-change)="name=$event">
@cheatsheetItem
<video #movieplayer ...> <button (click)="movieplayer.play()"> </video>|#movieplayer|(click)
Creates a local variable movieplayer that provides access to the video element instance in data-binding and event-binding expressions in the current template.
@cheatsheetItem
<p *my-unless="myExpression">...</p>|*my-unless
The * symbol means that the current element will be turned into an embedded template. Equivalent to:
<template [myless]="myExpression"><p>...</p></template>
@cheatsheetItem
<p>Card No.: {{cardNumber | myCreditCardNumberFormatter}}</p>|{{cardNumber | myCreditCardNumberFormatter}}
Transforms the current value of expression cardNumber via the pipe called creditCardNumberFormatter.
@cheatsheetItem
<p>Employer: {{employer?.companyName}}</p>|{{employer?.companyName}}
The Elvis operator (?) means that the employer field is optional and if undefined, the rest of the expression should be ignored.