plotly/plotly.js

[BUG]: floating-point artefacts in tick labels

Open

#7,765 opened on Apr 21, 2026

View on GitHub
 (2 comments) (0 reactions) (0 assignees)JavaScript (1,846 forks)batch import
buggood first issue

Repository metrics

Stars
 (15,964 stars)
PR merge metrics
 (Avg merge 35d 19h) (36 merged PRs in 30d)

Description

Description

Plotly shows a tick label of −0.0000000000000000888178, which is just silly.

Screenshots/Video

Steps to reproduce

https://codepen.io/Shack-1-Spoilage/pen/MYjdYoR

Contributor guide

Research direction
Investigate the tick label formatting logic in plotly.js, specifically how values near zero are rounded. Look for floating point precision issues in number formatting functions.
Tech stack
javascript
Domain
frontend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
JavaScript
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60