How do I add a style to component in angular 2?

How would you implement a style on a form component inline?

  1. You can add a styles array property to the @Component decorator.
  2. You can load styles from external CSS files by adding a styleUrls property to a component’s @Component decorator:
  3. You can embed CSS styles directly into the HTML template by putting them inside <style> tags.

How do you apply style based on condition in angular 2?

The following are the ways to conditionally apply styles to a DOM element in Angular 2.

  1. Applying styles property. Angular 2 allows us to assign the style property of HTML element. …
  2. Use ngClass directive. Angular 2 still supports ngClass directive. …
  3. Adding single class. …
  4. By creating custom Directive.

29 нояб. 2016 г.

Where can you place styles that are only used by a single component in angular application?

The styles specified in @Component metadata apply only within the template of that component.

How would you implement CSS logic in an angular application?

Angular components can be styled via global CSS the same as any other element in your application. Simply drop a `<link>` element on your page (typically in index. html) and you’re good to go! However, Angular additional gives developers more options for scoping your styles.

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What is Ng-deep in angular?

::ng-deep selector

The ::ng-deep combinator works to any depth of nested components, and it applies to both the view children and content children of the component. The following example targets all <h3> elements, from the host element down through this component to all of its child elements in the DOM.

What are angular lifecycle hooks?

Your application can use lifecycle hook methods to tap into key events in the lifecycle of a component or directive in order to initialize new instances, initiate change detection when needed, respond to updates during change detection, and clean up before deletion of instances.

What is ngClass?

The ngClass directive allows you to dynamically set CSS classes on an HTML element by databinding an expression that represents all classes to be added. … If the expression evaluates to an object, then for each key-value pair of the object with a truthy value the corresponding key is used as a class name.

How do you use ngClass?

The Many Ways To Use NgClass

  1. Add/Remove classes based on Angular variables.
  2. Add/Remove classes based on evaluated expressions.
  3. Bind single or multiple classes based on dynamic data.

7 авг. 2014 г.

How do I add a style in typescript?

i need to set multiple CSS properties in typescript. for that i have tried the below code. let elem: HTMLElement = document. getElementById(‘myDiv’); setStyleAttribute(elem, {font-size:’12px’, color : ‘red’ , margin-top: ‘5px’});

What is SCSS in angular?

The Angular CLI supports Sass, CSS and Less to style global application styles as well as component styles. … Angular components styles have a useful CSS encapsulation mechanism that ensures any component CSS is local to the component and does not globally alter any styles.

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Which stylesheet format for angular is best?

Use CSS preprocessors for faster development

We can also use CSS preprocessors like SCSS/SASS for our Angular projects and I prefer them instead of writing plain CSS as they provide a lot of advantages over writing plain CSS.

What is host in angular?

In Angular :host, :host-context, and /deep/ selectors are used in components that are in parent child relationship. The :host selector in Angular component plays the role to apply styles on host element. By default component style works within its component template.

Why is NG deep deprecated?

Angular’s API states that the ng-deep psuedo-class is deprecated. completely disables view-encapsulation for that rule. If we use it without the :host pseudo-class, it will make the style-rule global, not a good thing. There’s something odd about Angular view encapsulation which gets style specificity wrong.

What is Shadow DOM in angular?

Shadow DOM basically allows group of DOM implementation to be hidden inside a single element (which is the basic idea of components) and encapsulate styles to the element. OR. Shadow DOM allows us to hide DOM logic behind other elements.

What is view encapsulation in angular?

View encapsulationlink

ShadowDom view encapsulation uses the browser’s native shadow DOM implementation (see Shadow DOM on the MDN site) to attach a shadow DOM to the component’s host element, and then puts the component view inside that shadow DOM. The component’s styles are included within the shadow DOM.

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