How do you handle the submit button in a multi-step form?
Show the submit button only on the last step (currentStep === steps.length - 1). Hide the next button on the last step. On submit, validate the last step and call the submit callback with all form data.
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More FAQs in Tab Form Common Mistakes and Fixes
Because the data is not persisted. The inputs are re-created on each step render, and their values are lost. Fix: store all data in a single object (formData), update on every input change, and set input values from this object on render.
Validate the current step before allowing next: check all required fields. If any is empty, show an error and prevent navigation. Only allow next if all required fields are filled.
No. Hide the prev button when currentStep === 0. There is nothing to go back to. Showing a disabled or non-functional prev button is confusing.
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