Flex
The Flex is style attribute gives us the ability to define layouts that can expand and shrink automatically based on screen size. The flex value is a number that represents the ratio of space that a component should take up, relative to its siblings.
If flex value is 1, the component will expand to fill its parent entirely. if flex value of 0, the component will shrink to the minimum space
possible.
The flexDirection adds the style to the component in a primary axis of its layout.It has a property row & column to organize children vertically and horizontally. The default flexDirection is column.
Example: