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PropTypes in JavaScript.

PropTypes exports a range of validators that can be used to make sure the data we receive is valid. PropTypes are a mechanism to ensure that components use the correct data type and pass the right data, and that components use the right type of props, and that receiving components receive the right type of props.

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16 Libraries You Should Know as a React Developer

Being a modern React developer is not about knowing just React itself. To stay competitive, it is highly recommended to explore the whole ecosystem. This article contains some of the most useful React component libraries to speed up your developer workflow.