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490What Are Uncontrolled Components?
491Creating a Ref with useRef
492Attaching Refs to Input Elements
493Accessing the Input Value
494When Refs Become Available
495Common Pattern: Reading on Submit
496Imperatively Focusing an Input
497Imperatively Selecting Text
498Refs Don't Trigger Re-renders
499Limitations: No Live Validation Feedback
500defaultValue vs value: The Key Difference
501Using defaultValue for Text Inputs
502defaultChecked for Checkboxes and Radio Buttons
503When Default Props Don't Update
504Resetting Uncontrolled Inputs with key
505Mixing defaultValue with Refs
506Common Mistakes: Switching Between Controlled and Uncontrolled
507Simple Forms Without Real-Time Validation
508File Inputs: Always Uncontrolled
509Third-Party Widgets and Integrations
510Performance-Sensitive Large Forms
511Rapid Prototyping and Demos
512Migration from Plain HTML Forms
513Forms with Minimal State Requirements
514Native Form Validation Reliance
515Recognizing When Controlled is Still Better
516Form Submission Basics with Uncontrolled Inputs
517Accessing Multiple Refs on Submit
518Using FormData API with Uncontrolled Forms
519Reading Values with event.target.elements
520Combining Uncontrolled Inputs with Validation
521Handling File Inputs on Submit
522Resetting Uncontrolled Forms After Submit
523When Submit-Time Reading is Appropriate

490What Are Uncontrolled Components?
491Creating a Ref with useRef
492Attaching Refs to Input Elements
493Accessing the Input Value
494When Refs Become Available
495Common Pattern: Reading on Submit
496Imperatively Focusing an Input
497Imperatively Selecting Text
498Refs Don't Trigger Re-renders
499Limitations: No Live Validation Feedback
500defaultValue vs value: The Key Difference
501Using defaultValue for Text Inputs
502defaultChecked for Checkboxes and Radio Buttons
503When Default Props Don't Update
504Resetting Uncontrolled Inputs with key
505Mixing defaultValue with Refs
506Common Mistakes: Switching Between Controlled and Uncontrolled
507Simple Forms Without Real-Time Validation
508File Inputs: Always Uncontrolled
509Third-Party Widgets and Integrations
510Performance-Sensitive Large Forms
511Rapid Prototyping and Demos
512Migration from Plain HTML Forms
513Forms with Minimal State Requirements
514Native Form Validation Reliance
515Recognizing When Controlled is Still Better
516Form Submission Basics with Uncontrolled Inputs
517Accessing Multiple Refs on Submit
518Using FormData API with Uncontrolled Forms
519Reading Values with event.target.elements
520Combining Uncontrolled Inputs with Validation
521Handling File Inputs on Submit
522Resetting Uncontrolled Forms After Submit
523When Submit-Time Reading is Appropriate

Lesson 507 of 2,396·14. Uncontrolled ComponentsPro lesson

Simple Forms Without Real-Time Validation

Use uncontrolled components when you only need final values on submit and don't need live feedback during input.

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