1. Conditional Rendering

Use an if statement or a ternary operator to control whether the component should be rendered:

{shouldRender && <MyComponent />}

or

{shouldRender ? <MyComponent /> : null}

2. Returning null Inside the Component

If you want the component itself to decide whether it should render:

const MyComponent = ({ isVisible }) => {
  if (!isVisible) return null;

  return <div>Visible Content</div>;
};

3. Using React.memo() With Custom propsAreEqual

You can use React.memo() to avoid re-rendering a component when props haven’t changed:

const MyComponent = React.memo((props) => {
  return <div>{props.data}</div>;
}, (prevProps, nextProps) => {
  // return true to skip rendering
  return prevProps.data === nextProps.data;
});

4. Using useEffect to Control Side Effects, Not Rendering

While this doesn’t stop rendering directly, sometimes useEffect is used to manage behavior that depends on render conditions:

useEffect(() => {
  if (!shouldRender) return;

  // Do something only if shouldRender is true
}, [shouldRender]);

Guard Rendering by User Role, Auth, etc.

useEffect(() => {
  if (!shouldRender) return;

  // Do something only if shouldRender is true
}, [shouldRender]);