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Multi-step Signup Form (3-step Wizard)

By FrontendAtlas Team · Updated Jan 30, 2026

Build a 3-step signup flow in Vue 3 that collects basic info, address info, and shows a summary with a final submit action. Each step should be validated before the user can proceed.

Render a 3-step signup form as a small wizard-style UI.
Step 1: Basic info (name, email).

What you’ll build / What this tests

This premium vue coding focuses on Multi-step Signup Form (3-step Wizard). You’ll apply vue and forms thinking with intermediate level constraints. The prompt emphasizes Build a 3-step signup flow in Vue 3 that collects basic info, address info, and shows….

Learning goals

Translate the prompt into a clear vue API signature and return shape.
Apply vue, forms, validation techniques to implement multi-step signup form (3-step wizard).
Handle intermediate edge cases without sacrificing readability.
Reason about time/space complexity and trade-offs in vue.

Key decisions to discuss

Define the exact input/output contract before coding.
Prioritize predictable edge-case handling over micro-optimizations.

Evaluation rubric

Correctness: covers required behaviors and edge cases.
Clarity: readable structure and predictable control flow.
Complexity: avoids unnecessary work for large inputs.
API discipline: no mutation of inputs; returns expected shape.
Testability: solution is easy to unit test.

Constraints / Requirements

Render a 3-step signup form as a small wizard-style UI.
Step 1: Basic info (name, email).
Step 2: Address info (street, city, country, optional postal code).
Step 3: Summary + Submit (show all collected data and allow submission).
Provide a "Next" button to advance to the next step.
"Next" must only be enabled when the current step is valid.
Provide an optional "Back" button to navigate to the previous step (except on the first step).
On the summary step, show a read-only overview of all data entered so far.
On the last step, show a "Submit" button that submits the aggregated data.
Initial render shows Step 1 (Basic info) with empty fields.

Mini snippet (usage only)

// Example usage
const input = /* multi-step signup form (3-step wizard) input */;
const result = solve(input);
console.log(result);

// Edge case check
const empty = input ?? null;
const fallback = solve(input);
console.log(fallback);

// Expected: describe output shape, not the implementation
// (no solution code in preview)

Common pitfalls

Mutating inputs instead of returning a new value.
Skipping edge cases like empty input, duplicates, or nulls.
Overlooking time complexity for large inputs.