Font optimization with next/font in NextJS - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the main purpose of using next/font in a Next.js project?

The main purpose is to optimize font loading by automatically handling font subsets, preloading, and reducing layout shifts, which improves page speed and user experience.

intermediate

How does next/font help reduce layout shifts caused by fonts?

It preloads fonts and uses font subsets to ensure text renders quickly and consistently, preventing visible changes in text size or style after the page loads.

beginner

Which font types can be optimized using next/font?

You can optimize Google Fonts, local fonts, and custom fonts by importing them through next/font/google or next/font/local.

intermediate

What is the benefit of using font subsets in next/font?

Font subsets load only the characters needed for your content, which reduces font file size and speeds up page loading.

beginner

Show a simple example of importing and using a Google Font with next/font.

Example:
<pre>import { Roboto } from 'next/font/google';
const roboto = Roboto({ subsets: ['latin'], weight: '400' });

export default function Home() {
  return <main className={roboto.className}>Hello with Roboto font!</main>;
}</pre>

What does next/font automatically do to improve font loading?

A Preloads fonts and uses subsets

B Converts fonts to images

C Removes all fonts from the page

D Loads fonts only after user clicks

next/font preloads fonts and uses subsets to speed up loading and reduce layout shifts.

Which import would you use to load a Google Font with next/font?

A import Roboto from 'next/font/remote';

B import Roboto from 'next/font/local';

C import { Roboto } from 'next/font/custom';

D import { Roboto } from 'next/font/google';

Google Fonts are imported from 'next/font/google'.

Why are font subsets useful in next/font?

A They load only needed characters to reduce file size

B They add extra characters for all languages

C They disable font loading

D They convert fonts to SVG

Subsets reduce font file size by loading only required characters.

What is a key benefit of using next/font over traditional font loading?

A Fonts are embedded as base64 images

B Fonts load slower but look better

C Improved performance and less layout shift

D Fonts are only loaded on mobile devices

next/font improves performance and reduces layout shifts by smart font loading.

How do you apply a font loaded with next/font to a component?

A Set the font in a CSS file manually

B Use the font's <code>className</code> on an element

C Fonts apply automatically without code

D Use inline styles with font URL

You apply the font by adding the font's className to your element.

Explain how next/font improves font loading and user experience in Next.js.

Think about speed and how fonts appear on the page.

Describe the steps to import and use a Google Font with next/font in a Next.js component.

Focus on import, configuration, and usage.