Question 1

How to reduce Plotly.js bundle size for my project?

Accepted Answer

Use partial official bundles like 'plotly.js-basic' or create custom bundles by selecting only needed modules, as detailed in CUSTOM_BUNDLE.md. This requires build tool configuration but can significantly cut down file size.

Question 2

Plotly.js vs D3.js: which is better for custom visualizations?

Accepted Answer

Plotly.js provides higher-level, pre-built chart types with interactivity, while D3.js offers more low-level control for fully custom designs. For rapid development of standard charts, Plotly.js saves time; for unique, bespoke visuals, D3.js is more flexible.

Question 3

Can I use Plotly.js with React or Vue?

Accepted Answer

Yes, Plotly.js can be integrated with any JavaScript framework via its standard API. Community wrappers like react-plotly.js exist for easier React integration, but native usage requires manual event handling.

Question 4

How to export Plotly charts as images or PDFs?

Accepted Answer

Use Plotly.toImage or Plotly.downloadImage methods for client-side export to PNG, JPEG, or SVG. For server-side or batch exports, leverage Plotly's Node.js capabilities or third-party libraries.

Question 5

Does Plotly.js support real-time data streaming?

Accepted Answer

Yes, charts can be updated dynamically with Plotly.react or similar methods, but for high-frequency updates, optimize using WebGL traces and throttle redraws to prevent performance issues with large datasets.

Question 6

Is Plotly.js free for commercial use in my app?

Accepted Answer

Plotly.js is open-source under the MIT license, so it's free for commercial use without restrictions. However, Plotly offers paid consulting and enterprise services for additional support and features.

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