June 23, 2020
How to apply validation on props in React?
When the application is running in development mode, React will automatically check all props that we set on components to make sure they have correct type. If the type is incorrect, React will generate warning messages in the console. It's disabled in production mode due to performance impact. The mandatory props are defined with isRequired
.
The set of predefined prop types:
PropTypes.number
PropTypes.string
PropTypes.array
PropTypes.object
PropTypes.func
PropTypes.node
PropTypes.element
PropTypes.bool
PropTypes.symbol
PropTypes.any
We can define propTypes
for User
component as below:
Note: In React v15.5 PropTypes were moved from React.PropTypes
to prop-types
library.