Attribute binding with v-bind in Vue - Cheat Sheet & Quick Revision

Recall & Review

beginner

What does v-bind do in Vue?

v-bind connects HTML attributes to Vue data. It updates the attribute when data changes.

beginner

How do you bind the href attribute of an <a> tag to a Vue data property url?

Use <a v-bind:href="url"> or shorthand <a :href="url">.

intermediate

Can you bind multiple attributes using v-bind?

Yes, by using v-bind with an object, like v-bind="{ id: someId, title: someTitle }".

beginner

What is the shorthand syntax for v-bind?

The shorthand is a colon : before the attribute name, e.g., :src="imageSrc".

beginner

Why use v-bind instead of plain HTML attributes?

v-bind keeps attributes reactive. When data changes, the attribute updates automatically without page reload.

What does v-bind:class="myClass" do in Vue?

A Binds the class attribute to the value of myClass data property

B Creates a new CSS class named myClass

C Removes the class attribute from the element

D Binds the style attribute to myClass

v-bind:class sets the element's class attribute to the value of the myClass data property.

Which is the shorthand for v-bind:src="imageUrl"?

A *src="imageUrl"

B #src="imageUrl"

C :src="imageUrl"

D @src="imageUrl"

The colon : is the shorthand for v-bind.

If you want to bind multiple attributes at once, what can you pass to v-bind?

A An object with key-value pairs for each attribute

B A string with all attributes separated by commas

C An array of attribute names

D A boolean value

You can pass an object to v-bind to bind multiple attributes at once.

What happens if the data bound with v-bind changes?

A Nothing changes until page reload

B The attribute updates automatically in the DOM

C Vue throws an error

D The attribute is removed

Vue updates the attribute reactively when the bound data changes.

Which HTML attribute cannot be bound directly with v-bind without special handling?

A id

B style

C class

D for

The for attribute is special in Vue and is bound using v-bind:for or :for but sometimes requires care because it is a reserved word in JavaScript.

Explain how v-bind helps keep HTML attributes reactive in Vue.

Think about what happens when the data changes.

Describe the difference between using plain HTML attributes and using v-bind in Vue templates.

Consider how attributes behave when data changes.