React · Theory

Comments in React

Theory

70/94

Comments in React

Inside JSX you cannot use . Use {/* comment */}. Outside JSX, normal // and /* */. That’s the whole topic. People hit this when they paste HTML into a component.

Comments in React —  don’t work inside JSX. Use {/* */}.

Exam tip

{/* */} in JSX.

Example

// JSX comment
export default function Page() {
  return (
    <main>
      {/* promo banner off for exams */}
      <h1>Prep</h1>
    </main>
  );
}

Comments in React —  don’t work inside JSX. Use {/* */}.

Short notes

JSX : {/* */}.
JS : // or /* */.
Trap inside JSX.

React · Theory

Comments in React

← All stacks

Theory

70/94

Comments in React

Inside JSX you cannot use . Use {/* comment */}. Outside JSX, normal // and /* */. That’s the whole topic. People hit this when they paste HTML into a component.

Comments in React —  don’t work inside JSX. Use {/* */}.

Exam tip

{/* */} in JSX.

Example

// JSX comment
export default function Page() {
  return (
    <main>
      {/* promo banner off for exams */}
      <h1>Prep</h1>
    </main>
  );
}

Comments in React —  don’t work inside JSX. Use {/* */}.

Short notes

JSX : {/* */}.
JS : // or /* */.
Trap inside JSX.

Comments in React

Example

Short notes

Questions

Comments in React

Example

Short notes

Questions