Controlled vs Uncontrolled Components in React
A detailed analysis on the differences between controlled and uncontrolled components in React, with practical examples and use cases.
Controlled components vs. Uncontrolled components: Key Differences
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When we use controlled components, it easier to predict our form’s behavior, because the component is in control of the form elements’ state.
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With uncontrolled components, things can get unpredictable, because form elements can lose reference or be affected by other sources during the component’s lifecycle.
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Using controlled components, we can perform form validations more effectively. This is because form element values are stored in our local state and, therefore, are safer. This is where we perform our validations.
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With controlled components, we have a lot of control over form element values. We can dictate what is allowed and what isn’t, and how values should be handled.
Conclusion
In this tutorial, we taught how to handle form elements in React and how to structure data. We talked about two different ways to handle form data in React components: controlled and uncontrolled. And finally, we explored both component types in detail and gave practical examples to demonstrate how they work.