Vue Js Programming Standards

Question 1

Which data binding interpolation goes by the term "Mustache"?

Accepted Answer

{{}}

Answer

In Vue.js, the double curly braces `{{ }}` are used for text interpolation, allowing you to bind data directly into the DOM. This syntax is commonly referred to as 'Mustache' syntax due to its visual resemblance to a mustache, and it's a fundamental way to display reactive data in your templates.

Question 2

How does Vue.js implement the for loop?

Accepted Answer

v-for

Answer

Vue.js provides the `v-for` directive to render a list of items based on an array or object. It allows you to iterate over data and dynamically create multiple elements or components in your template, making it a powerful tool for displaying collections of data.

Question 3

How do I set up a Vue.js instance?

Accepted Answer

var text = new Vue({// options }).

Answer

To create a new Vue.js application or component instance, you use the `new Vue()` constructor. This constructor takes an options object where you define the instance's data, methods, computed properties, and other configurations, which then allows Vue to manage the reactive behavior of your application.

Question 4

Which event modifier is only applied to stop clicks on the element itself?

Accepted Answer

@click.self.prevent

Answer

The `@click.self` event modifier ensures that the event handler is only triggered when the event originates directly from the element it's attached to, and not from any of its child elements. This effectively 'stops' the event from being handled by the parent if a child was clicked. The `.prevent` modifier, when combined, then calls `event.preventDefault()` to stop the default action of the element itself when clicked directly.

Question 5

Which is employed when a component property or a number of characteristics are to be dynamically bound to an expression?

Accepted Answer

v-bind

Answer

`v-bind` is a core Vue.js directive used to dynamically bind one or more attributes, or a component prop, to an expression. This allows data from the Vue instance to flow into the HTML attributes or component props, making them reactive to changes in the data. Its shorthand syntax is a colon (`:`).

Vue JS Practice Test

Vue JS Practice Test

Vue Js Programming Standards