React-Rendering-List

Question 1

When would we want to dynamically create a list of React components?

Answer 1

When we have a collection of data that we want to display using components

Question 2

Why is it important for React components to be data-driven?

Answer 2

It allows for data to be applied dynamically when a component is rendered

Question 3

Where in the component code would a list of React components typically be built?

Answer 3

within a callback function of thats passed as an argument of the .map() method

Question 4

What Array method is commonly used to create a list of React components?

Answer 4

the .map() method

Question 5

Why do components in a list need to have unique keys?

Answer 5

Keys tell React which array item each component corresponds to, so that it can match them up later.

Question 6

What is the best value to use as a “key” prop when rendering lists?

Answer 6

a string or a number value