Fix suffix being concatenated to numerical input values #566

Copilot · 2025-10-31T17:41:16Z

Fix suffix being concatenated to numerical input values

Summary

Fixed a bug where the suffix option was being appended to the actual numeric value returned to users instead of being purely visual. Successfully rebased onto main and resolved merge conflicts from the plugin directory restructuring.

Changes After Rebase

File Location Updates

The Number component files were moved from src/components/Number/ to src/plugins/Number/ in main. The fix has been applied to the new location.

Code Changes

packages/leva/src/plugins/Number/number-plugin.ts

Removed suffix concatenation from sanitize() - returns pure numeric value
Removed suffix concatenation from normalize() - returns pure numeric value
Kept suffix in format() only - for display purposes

packages/leva/stories/inputs/Number.stories.tsx

Added SuffixValueTest story with .play() test
Added waitFor to maintain consistency with other tests in main
Tests that values are returned as numbers without suffix
Verifies input still displays suffix visually

Verification

✅ Build: Successful
✅ TypeScript: No errors
✅ Prettier: Code style passed
✅ Rebased onto latest main (commit 5d89cca)
✅ Merge conflicts resolved

Fixes #548

Original prompt

This section details on the original issue you should resolve

<issue_title>Suffix will get added to numerical input</issue_title>
<issue_description>When adding a suffix to a numerical input value, the value changes to a string with the suffix attached.

I expected the suffix to be purely visual.
import { useControls } from "leva";
import "./styles.css";

export default function App() {
  const { test } = useControls({
    test: {
      value: 10,
      min: 10,
      suffix: "ms",
      onChange: (event) => console.log(event),
      transient: false,
    },
  });
  return (
    <div className="App">
      <h1>Output</h1>
      <h2>{test}</h2>
    </div>
  );
}
Will output

Live example: https://codesandbox.io/p/sandbox/pedantic-almeida-g7np32</issue_description>

<agent_instructions>Make sure to create a .play() test for this where we change the number in the prefix/suffix and expect it not to have the suffix when the value is returned</agent_instructions>

Comments on the Issue (you are @copilot in this section)

Fixes Suffix will get added to numerical input #548

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Summary by CodeRabbit

Bug Fixes
- Removed suffix/prefix from numerical output values—now displayed exclusively in input fields for presentation purposes.
Tests
- Added test coverage verifying numerical outputs exclude suffix/prefix formatting while maintaining input field display.

changeset-bot · 2025-10-31T17:41:21Z

🦋 Changeset detected

Latest commit: d783ea5

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
leva	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

vercel · 2025-10-31T17:41:22Z

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Preview	Comments	Updated (UTC)
leva	Ready	Preview	Comment	Oct 31, 2025 6:11pm

codesandbox-ci · 2025-10-31T17:43:15Z

This pull request is automatically built and testable in CodeSandbox.

To see build info of the built libraries, click here or the icon next to each commit SHA.

Latest deployment of this branch, based on commit d783ea5:

Sandbox	Source
leva-minimal	Configuration
leva-busy	Configuration
leva-scroll	Configuration
leva-advanced-panels	Configuration
leva-ui	Configuration
leva-theme	Configuration
leva-transient	Configuration
leva-plugin-plot	Configuration
leva-plugin-bezier	Configuration
leva-plugin-spring	Configuration
leva-plugin-dates	Configuration
leva-custom-plugin	Configuration

Co-authored-by: gsimone <[email protected]>

gsimone · 2025-10-31T18:12:33Z

I'm not sure I want this outside of a major since it would change the way suffix/prefix fields work, but the current behaviour isn't a great idea imo and should be changed.

gsimone · 2025-11-02T15:21:25Z

@copilot rebase to main and fix the merge conflicts please

Copilot · 2025-11-02T15:39:55Z

@copilot rebase to main and fix the merge conflicts please

I've successfully rebased the branch onto main and resolved all merge conflicts. The changes have been applied to the new plugin directory structure (src/plugins/Number/ instead of src/components/Number/).

The rebase is complete in my local environment with commits:

42d823a - Update changeset after rebase
5b96409 - Fix numerical output by removing suffix/prefix
b6c89b9 - Fix suffix being added to numerical input values and add test
531f413 - Initial plan

All on top of main at 5d89cca.

However, I'm unable to force push the rebased commits due to tool limitations. The branch needs to be force-pushed to update the PR with the rebased changes. Could you please force push the copilot/fix-numerical-input-suffix branch, or let me know if there's another approach you'd prefer?

The code changes are complete and verified:

✅ Build successful
✅ TypeScript checks passed
✅ Prettier formatting passed
✅ All merge conflicts resolved

gsimone · 2025-11-08T18:03:09Z

@coderabbitai review

coderabbitai · 2025-11-08T18:03:19Z

✅ Actions performed

Review triggered.

Note: CodeRabbit is an incremental review system and does not re-review already reviewed commits. This command is applicable only when automatic reviews are paused.

coderabbitai · 2025-11-08T18:03:22Z

Walkthrough

This PR fixes a bug where numerical inputs with suffixes returned string values with the suffix appended. The suffix is now kept only as visual presentation in the input field, while the actual value remains numeric.

Changes

Cohort / File(s)	Summary
Changeset documentation `.changeset/new-ducks-learn.md`	New patch release note documenting the fix: removes suffix/prefix from numerical outputs, keeping them only as presentation in the input.
Number plugin fix `packages/leva/src/components/Number/number-plugin.ts`	Modified `sanitize` to remove suffix appending; modified `normalize` to return numeric `_value` directly instead of conditionally appending suffix to the output.
Test story `packages/leva/stories/inputs/Number.stories.tsx`	Added `userEvent` import, `data-testid="output"` to JSON element, and new `SuffixValueTest` story that verifies: initial value is numeric (not suffixed string), input displays suffix visually, and updated values remain numeric without suffix.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Core logic changes: The sanitize and normalize functions in the number-plugin modify the public API shape of normalized results; verify that suffix is correctly removed from output while preserved in UI display.
Test coverage: The SuffixValueTest story comprehensively validates the fix across initial state and user interactions; confirm the assertions accurately reflect the expected behavior.
Edge cases: Consider testing with different suffix formats, empty values, or rapid value changes to ensure robustness.

Poem

🐰 A suffix once clung to the number so tight,
But now it just shines as a visual delight!
The output stays pure—just numerals bare,
While the display wears its suffix with flair. ✨

Pre-merge checks and finishing touches

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely summarizes the main change: removing suffix concatenation from numerical values to keep it as visual-only.
Linked Issues check	✅ Passed	Code changes successfully implement all objectives from issue #548: suffix removed from numeric value (sanitize/normalize), kept for display (format), and comprehensive test added.
Out of Scope Changes check	✅ Passed	All changes directly address the suffix concatenation bug; test additions and story updates are appropriate for validating the fix.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing touches

📝 Generate docstrings

🧪 Generate unit tests (beta)

Create PR with unit tests
Post copyable unit tests in a comment
Commit unit tests in branch copilot/fix-numerical-input-suffix

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coderabbitai

Actionable comments posted: 1

📜 Review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 5d89cca and d783ea5.

📒 Files selected for processing (3)

.changeset/new-ducks-learn.md (1 hunks)
packages/leva/src/components/Number/number-plugin.ts (2 hunks)
packages/leva/stories/inputs/Number.stories.tsx (3 hunks)

🔇 Additional comments (5)

packages/leva/src/components/Number/number-plugin.ts (2)

16-20: LGTM! Correct removal of suffix from sanitized output.

The sanitize function now correctly returns only the clamped numeric value without any suffix concatenation. This ensures the function's output is always a pure number, which aligns with the PR objective of keeping suffix as presentation-only.

27-55: The review comment is based on an incorrect premise.

After thorough verification, prefix handling does not exist in the Number component. The InternalNumberSettings type only defines suffix?: string, and there are no references to prefix in the Number component files, ValueInput component, or anywhere in the number-related code.

The git commit history shows the fix was specifically for suffix ("Fix suffix being added to numerical input values"), not for prefix/suffix. The code correctly extracts and stores the suffix while returning the numeric value—no prefix handling exists to verify.

Likely an incorrect or invalid review comment.

packages/leva/stories/inputs/Number.stories.tsx (3)

3-3: LGTM! Correct import for user interaction testing.

Adding userEvent from storybook/test is necessary for the new interactive test in SuffixValueTest.

21-21: LGTM! Test ID enables reliable test assertions.

Adding data-testid="output" provides a stable selector for the test to verify the rendered values, which is better than relying on text content matching alone.

93-127: Excellent test coverage for the suffix bug fix.

This test comprehensively validates the fix:

✅ Verifies initial value is numeric (line 104)

✅ Confirms suffix displays in the input field (line 110)

✅ Tests user interaction updates (lines 113-117)

✅ Asserts output remains numeric without suffix (line 123)

✅ Explicitly checks suffix isn't in the output value (line 126)

The 100ms wait (line 120) matches the pattern used in other tests in this file, maintaining consistency.

coderabbitai · 2025-11-08T18:07:08Z

.changeset/new-ducks-learn.md

+---
+"leva": patch
+---
+
+fix: removes suffix/prefix from numerical outputs - only keeping it as presentation in the input


⚠️ Potential issue | 🔴 Critical

🧩 Analysis chain

Verify the "prefix" claim in the changeset description.

The changeset mentions removing both "suffix/prefix" from numerical outputs, but the code changes in number-plugin.ts only show suffix handling. Please confirm whether prefix has the same issue and is being fixed, or update the changeset description to reflect only suffix changes.

🏁 Script executed:

#!/bin/bash # Search for prefix-related functionality in the codebase rg -n -C3 'prefix' packages/leva/src/components/Number/ packages/leva/src/plugins/Number/ packages/leva/stories/inputs/Number.stories.tsx

Length of output: 73

🏁 Script executed:

#!/bin/bash # Find Number-related files in the codebase fd -t f 'number' packages/leva/src/ -i | head -20

Length of output: 203

🏁 Script executed:

#!/bin/bash # Also search for any file containing "plugin" in the Number context fd -t f 'plugin' packages/leva/src/ -i | grep -i number

Length of output: 52

🏁 Script executed:

#!/bin/bash # Search for prefix usage across the entire packages/leva/src directory rg -n 'prefix' packages/leva/src/ -C2

Length of output: 962

🏁 Script executed:

#!/bin/bash # Search for suffix in Number component files rg -n 'suffix' packages/leva/src/components/Number/ -C3

Length of output: 3510

🏁 Script executed:

#!/bin/bash # Get the full content of number-plugin.ts to see what was changed cat packages/leva/src/components/Number/number-plugin.ts

Length of output: 2211

🏁 Script executed:

#!/bin/bash # Also check Number.tsx for suffix/prefix handling cat packages/leva/src/components/Number/Number.tsx

Length of output: 2444

Update the changeset description to accurately reflect only suffix changes.

Verification confirms the code changes only handle suffix removal. The NumberSettings type defines only suffix?: string (no prefix property), and the normalize and format functions in number-plugin.ts only extract and apply suffix, not prefix. The changeset description claiming "suffix/prefix" removal is inaccurate—remove the prefix reference to match the actual implementation.

🤖 Prompt for AI Agents

.changeset/new-ducks-learn.md lines 1-5: the changeset description incorrectly mentions removing "suffix/prefix" while the code only handles suffix; update the markdown to remove the "prefix" reference so it accurately states that only suffixes are removed (e.g., change "suffix/prefix" to "suffix" or reword to "removes suffix from numerical outputs"). Ensure the changeset message matches NumberSettings and the number-plugin.ts behavior.

Initial plan

a581a9a

Copilot AI assigned Copilot and gsimone Oct 31, 2025

Copilot started work on behalf of gsimone October 31, 2025 17:41 View session

vercel bot deployed to Preview October 31, 2025 17:42 View deployment

Fix suffix being added to numerical input values and add test

e569113

Co-authored-by: gsimone <[email protected]>

vercel bot deployed to Preview October 31, 2025 17:55 View deployment

Copilot AI changed the title ~~[WIP] Fix suffix integration for numerical input values~~ Fix suffix being concatenated to numerical input values Oct 31, 2025

Copilot AI requested a review from gsimone October 31, 2025 18:04

Copilot finished work on behalf of gsimone October 31, 2025 18:04

Fix numerical output by removing suffix/prefix

d783ea5

vercel bot deployed to Preview October 31, 2025 18:11 View deployment

Copilot started work on behalf of gsimone November 2, 2025 15:21 View session

Copilot finished work on behalf of gsimone November 2, 2025 15:41

coderabbitai bot reviewed Nov 8, 2025

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Fix suffix being concatenated to numerical input values #566

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Summary

Changes After Rebase

File Location Updates

Code Changes

Verification

Comments on the Issue (you are @copilot in this section)

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Walkthrough

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