Vue

Question 1

Describe Vues data-binding syntax?

Answer 1

Vue supports
Text Interpolations using the mustache {{ }} syntax/tag.

In Vue.js, a binding expression consists of a single JavaScript expression optionally followed by one or more filters.
The text we put inside mustache tags are also called binding expressions.

Question 2

What is a directive?

Answer 2

Directives are special attributes that reactively applies dynamic behavior to the DOM when the value of its expression changes.

Directives are denotedby the v- prefix. Directive attribute values are expected to be binding expressions, so the rules about JavaScript expressions and filters mentioned above apply here as well.

Directives can have arguments and modifiers

Question 3

Describe v-bind.

Answer 3

V-bind binds element attributes to binding expressions. this provides reactivity to element attributes.

in other words. directive is used to reactively update an HTML attribute

Question 4

describe V-on

Answer 4

the V-on directive listens to DOM events

Question 5

Describe the component API

Answer 5

The component API is the new advanced syntax for writing vue components.

The setup function is a new component option. It serves as the entry point for using the Composition API inside components.