useLayoutEffect() is used for asynchronous side effects, while useEffect() is for synchronous side effects.

They are interchangeable and have the same effect.

useLayoutEffect() is used for server-side rendering, while useEffect() is for client-side rendering.

useLayoutEffect() runs synchronously after all DOM mutations, while useEffect() runs asynchronously after the render is painted.

<import url="style.css" media="(max-width: 600px)">

<link rel="stylesheet" href="style.css" media="screen and (max-width: 600px)">

<link rel="stylesheet" href="style.css" if-media="(max-width: 600px)">

<style src="style.css" media="(max-width: 600px)">

A multi-column layout.

A table layout.

A grid layout with named areas.

An image layout.

Data
Data

<table><tr><td>Data</td></tr><th>Data</th></tr></table>

<table><thead><td>Data</td></thead><tbody><th>Data</th></tbody></table>

<table><tr><th>Data</th></tr><tr><td>Data</td></tr></table>

It creates a new stacking context

It forces the element to contain all of its floated children

It prevents the element's layout from affecting the rest of the page.

It sets the elements overflow to hidden

"object"

"Null"

"undefined"

"null"

There is no difference, they do the same thing

"visibility: hidden;" removes the element from the flow of the document, while "display: none;" still reserves the elements space.

"visibility: hidden;" effects the background color, while "display: none;" effects the text color.

"display: none;" removes the element from the flow of the document, while "visibility: hidden;" still reserves the elements space.

Error

null

undefined

5

The data-custom-value attribute is a valid custom data attribute.

The aria-label attribute is used for accessibility purposes.

The aria-label attribute directly alters the visual presentation of the div.

The UTF-8 character encoding ensures proper display of all characters.

Specificity, Source order, Importance.

Importance, Specificity, Source order.

Importance, Source order, Specificity

Source order, Specificity, Importance.