Crowdly

Which Vue.js directive should be used to prevent a form from being submitted naturally and instead handle the submission via JS

v-prevent

v-on:submit.prevent

v-submit.prevent

v-bind:submit.prevent

Which method is immutable (Doesn't modify the original array)?

Splice

shift

push

Slice

Which directive is used in VueJS to bind an attribute to an expression?

v-model

v-bind

v-if

v-for

Set the container to display: flex; and use align-items: stretch; to make columns of equal height.

How can you create columns of equal height using Flexbox?

Use flex-direction: column; on the container to align columns vertically and make them equal in height.

Set width: 100%; on each column to ensure they all have the same height.

Apply justify-content: center; to align columns in the middle and make their heights equal.

Consider Vue.js single-file components, what is the purpose of the ‘scoped’ attribute in style tag”

To increase the specificity of the CSS selectors defined within

To ensure that the styles are applied globally

To make the style accessible only with the components

To enable CSS modules with the component

In Vue.js how would you reactively bind a title attribute to data property ‘message’?

v-text=”message”

v-bind:title=”message”

title=”{{message}}”

v-model:title=”message”

What property on the event object contains the DOM object that invoked the event?

event.target

event.element

event.invoker

event.source

Consider a vue.js application with multiple nested components . How can a child component emit an event to its parent component?

Using this.$broadcasting(‘event-name’) in the parent component

Using this.$emit(‘event-name’) with the child component

Using this.$on(‘event-name’) in the child component

Using this.$parent.emit(‘event-name’) in the child component

What does mean higher order function?

a function that accepts another function as an argument or returns a function as a return value or both.

a function that accepts exactly one argument

functions are treated like any other variable

a function that doesn’t accept another function as an argument and doesn’t return a function as its return value