React, Vue and Svelte: Comparing Children Component

// Parent Component
<User>
  Front-end Developer
</User>

// Child Component
const User = (props) => {
  return <p>{props.children}</p>
}

// Parent Component
<User>
  Front-end Developer
</User>

// Child Component
<template>
  <slot>Display if no children passed</slot>
</template>

// Parent Component
<User>
  Front-end Developer
</User>

// Child Component
<div>
  <slot>Display if no children passed</slot>
</div>