95 lines
2.9 KiB
Markdown
95 lines
2.9 KiB
Markdown
@cheatsheetSection
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Template syntax
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@cheatsheetIndex 2
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@description
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@cheatsheetItem
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syntax:
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`<input [value]="firstName">`|`[value]`
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description:
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Binds property `value` to the result of expression `firstName`.
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@cheatsheetItem
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syntax:
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`<div [attr.role]="myAriaRole">`|`[attr.role]`
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description:
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Binds attribute `role` to the result of expression `myAriaRole`.
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@cheatsheetItem
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syntax:
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`<div [class.extra-sparkle]="isDelightful">`|`[class.extra-sparkle]`
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description:
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Binds the presence of the CSS class `extra-sparkle` on the element to the truthiness of the expression `isDelightful`.
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@cheatsheetItem
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syntax:
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`<div [style.width.px]="mySize">`|`[style.width.px]`
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description:
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Binds style property `width` to the result of expression `mySize` in pixels. Units are optional.
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@cheatsheetItem
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syntax:
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`<button (click)="readRainbow($event)">`|`(click)`
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description:
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Calls method `readRainbow` when a click event is triggered on this button element (or its children) and passes in the event object.
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@cheatsheetItem
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syntax:
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`<div title="Hello {{ponyName}}">`|`{{ponyName}}`
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description:
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Binds a property to an interpolated string, for example, "Hello Seabiscuit". Equivalent to:
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`<div [title]="'Hello ' + ponyName">`
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@cheatsheetItem
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syntax:
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`<p>Hello {{ponyName}}</p>`|`{{ponyName}}`
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description:
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Binds text content to an interpolated string, for example, "Hello Seabiscuit".
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@cheatsheetItem
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syntax:
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`<my-cmp [(title)]="name">`|`[(title)]`
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description:
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Sets up two-way data binding. Equivalent to: `<my-cmp [title]="name" (titleChange)="name=$event">`
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@cheatsheetItem
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syntax:
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`<video #movieplayer ...>
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<button (click)="movieplayer.play()">
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</video>`|`#movieplayer`|`(click)`
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description:
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Creates a local variable `movieplayer` that provides access to the `video` element instance in data-binding and event-binding expressions in the current template.
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@cheatsheetItem
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syntax:
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`<p *myUnless="myExpression">...</p>`|`*myUnless`
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description:
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The `*` symbol turns the current element into an embedded template. Equivalent to:
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`<template [myUnless]="myExpression"><p>...</p></template>`
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@cheatsheetItem
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syntax:
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`<p>Card No.: {{cardNumber | myCardNumberFormatter}}</p>`|`{{cardNumber | myCardNumberFormatter}}`
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description:
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Transforms the current value of expression `cardNumber` via the pipe called `myCardNumberFormatter`.
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@cheatsheetItem
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syntax:
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`<p>Employer: {{employer?.companyName}}</p>`|`{{employer?.companyName}}`
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description:
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The safe navigation operator (`?`) means that the `employer` field is optional and if `undefined`, the rest of the expression should be ignored.
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@cheatsheetItem
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syntax:
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`<svg:rect x="0" y="0" width="100" height="100"/>`|`svg:`
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description:
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An SVG snippet template needs an `svg:` prefix on its root element to disambiguate the SVG element from an HTML component.
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@cheatsheetItem
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syntax:
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`<svg>
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<rect x="0" y="0" width="100" height="100"/>
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</svg>`|`svg`
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description:
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An `<svg>` root element is detected as an SVG element automatically, without the prefix.
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