Which of the following describes data that is passed from a parent component to a child component?

Which of the following describes data that is passed from a parent component to a child component?

• A. state
• B. context
• C. attributes
• D. props

Answer: (D)

In React, data handed from a parent component to a child is provided through props. You pass this data by adding attributes to the child element in JSX, like <Child someData={value} />. Inside the child, those values are available as props and can be read (commonly via destructuring), but they’re read-only from the child’s perspective. This one-way data flow means the parent owns the data and the child renders based on it. State, on the other hand, is internal data owned by a component that can change over time via setState (or a state updater). Context lets you share data through many levels of the tree without passing props at every level, but it’s not the standard mechanism for the everyday parent-to-child data transfer. Attributes refer to the JSX syntax you write, while the data transfer mechanism you’re looking for is props. So, the data passed from a parent to a child is described by props.

In React, data handed from a parent component to a child is provided through props. You pass this data by adding attributes to the child element in JSX, like . Inside the child, those values are available as props and can be read (commonly via destructuring), but they’re read-only from the child’s perspective. This one-way data flow means the parent owns the data and the child renders based on it.

State, on the other hand, is internal data owned by a component that can change over time via setState (or a state updater). Context lets you share data through many levels of the tree without passing props at every level, but it’s not the standard mechanism for the everyday parent-to-child data transfer. Attributes refer to the JSX syntax you write, while the data transfer mechanism you’re looking for is props.

So, the data passed from a parent to a child is described by props.