Building the Login Page in React with Reusable Components

Short summary

Tutorial on building a reusable login form in React using TypeScript, emphasizing component composition and code reuse. TextInput and Button components are kept generic and fully controlled via props rather than managing their own state. Covers form state management, the handleChange pattern for updating only the changed field, and handleSubmit's async validation and authentication flow.

• •Reusable component pattern: TextInput and Button controlled via props to eliminate markup duplication
• •Parent component owns form state; both inputs share error state for unified validation messaging
• •handleChange uses event.target.name to identify and update only the modified field without separate handlers

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