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What is template reference variable in Angular?
Template variables help you use data from one part of a template in another part of the template. Use template variables to perform tasks such as respond to user input or finely tune your application’s forms. A template variable can refer to the following: a DOM element within a template. a directive.
Why do we need template reference variables in Angular?
Angular’s template reference variables provide a useful API through which you can interact with DOM elements and child components directly in your Angular code.
What is a template in Angular?
A template is an HTML snippet that tells Angular how to render the component in angular application. The template is immediately associated with a component defines that component’s view.
What is local reference in Angular?
Instead of two-way binding, we can easily fetch a value of any input through local references in Angular. Local references can be fetched directly from the component template and into the component typescript class. Lets check out how do we use local references.
What is Angular content projection?
Content projection is an concept that helps developers build reusable Angular components. It allows you to pass data from a parent component to a template of a child component. It’s similar to transclusion in Angular.js.
What is a template reference?
A template reference variable is often a reference to a DOM element within a template. It can also be a reference to an Angular component or directive or a web component (Read more at Angular.io). That means you can easily access the variable anywhere in the template.
What does means in Angular?
Means safe navigation operator. From Docs. The Angular safe navigation operator (?.) is a fluent and convenient way to guard against null and undefined values in property paths.
What is a template statement?
Template statements are methods or properties that you can use in your HTML to respond to user events. With template statements, your application can engage users through actions such as displaying dynamic content or submitting forms.
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 Ng-content Angular?
The ng-content tag is used for content projection. It is basically a placeholder to hold the dynamic content until it is parsed. Once the template is parsed, Angular replaces the tag with content.