Use the spread operator to pass props to child components. When passing props to a child component, it is best practice to use the spread operator instead of passing each prop individually. This makes the code more concise and easier to read. It also allows for easier maintenance, as adding or removing props only requires changes in one place.

Here is an example of passing props using the spread operator:

function ParentComponent() {
  const props = {
    prop1: 'value1',
    prop2: 'value2',
    prop3: 'value3'
  };

  return (
    <ChildComponent {...props} />
  );
} 

In the above example, the props object is spread using the spread operator, and passed to the ChildComponent. The ChildComponent can then access the props using the props object.

Here is an example of passing props without using the spread operator:

function ParentComponent() {
  return (
    <ChildComponent
      prop1='value1'
      prop2='value2'
      prop3='value3'
    />
  );
} 

In the above example, each prop is passed individually to the ChildComponent. This can become cumbersome and difficult to read when there are many props being passed.