What term describes information that can change over time in a component?

What term describes information that can change over time in a component?

• A. Static information
• B. Dynamic information
• C. Immutable data
• D. Derived state

Answer: (B)

Dynamic information is information in a component that can change over time. In React, this kind of data is typically stored in state and updated in response to user actions or new data, which then causes the UI to re-render so it stays in sync. For example, the value a user types into an input field or whether a section is visible are dynamic pieces of information—they can vary each time the component renders. Static information would be things you don’t change during the component’s life, like a constant label. Immutable data refers to data that cannot be changed after it's created, which isn’t about things that can change. Derived state is a specific pattern where you compute one piece of state from others, not the general idea of information that changes over time. So the term that best describes information that can change over time in a component is dynamic information.

Dynamic information is information in a component that can change over time. In React, this kind of data is typically stored in state and updated in response to user actions or new data, which then causes the UI to re-render so it stays in sync. For example, the value a user types into an input field or whether a section is visible are dynamic pieces of information—they can vary each time the component renders. Static information would be things you don’t change during the component’s life, like a constant label. Immutable data refers to data that cannot be changed after it's created, which isn’t about things that can change. Derived state is a specific pattern where you compute one piece of state from others, not the general idea of information that changes over time. So the term that best describes information that can change over time in a component is dynamic information.