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Mermaid Diagram Code

⬢ 層級 2技術
基礎
薪資影響
1 個月
學習時長
容易
難度
—
職業
一覽

Mermaid is a markdown-like syntax for creating diagrams (flowcharts, UML, Gantt, state machines, entity-relationship) using plain text. Rendered client-side or embedded in GitHub/GitLab. Replaces Lucidchart/draw.io for teams that prefer code over GUI. Diagrams live in Git, version-controlled, and evolve with your codebase. Takes 1 week to master basic syntax. Sits between GUI tools (Lucidchart) and code (GraphQL) as the practical middle ground.

什麼是 Mermaid Diagram Code

Mermaid is a JavaScript-based charting and diagramming tool that uses a markdown-like syntax to create diagrams as code. Instead of dragging shapes in Lucidchart or draw.io, you write text: graph TD; A-->B; becomes a flowchart. Mermaid supports flowcharts, UML (class, sequence, state), entity-relationship diagrams, Gantt charts, pie charts, and more. Diagrams defined in Mermaid syntax can be embedded in markdown, rendered by GitHub/GitLab, or included in web pages. Because diagrams are text, they version-control beautifully and can be reviewed in pull requests like code.

🔧 工具與生態
Mermaid syntaxMarkdown editorsGitHub/GitLab renderingMermaid Live EditorVSCode extensionsJavaScript/Node.jsGitLucidchart alternative

📋 開始之前

Git Version Control

💰 各地區薪資

地區初級中級高級
USA$70,000$112,000$158,000
UK£39,000—£92,000
EU€43,000—€98,000
CANADACA$63,000—CA$145,000

❓ 常見問題

Is Mermaid easy to learn?
Yes. If you know Markdown, you'll pick up Mermaid in a few hours. Simple syntax, good documentation, visual feedback from Mermaid Live Editor.
Can I embed Mermaid diagrams in my website?
Yes. Include the Mermaid script tag and write diagrams as code blocks. Works in any webpage, static site generator, or documentation.
Does Mermaid work with GitHub/GitLab?
Yes. GitHub renders Mermaid syntax in README files and markdown pages automatically (since late 2021). GitLab similar support.
What diagram types does Mermaid support?
Flowcharts, sequence diagrams, class diagrams, state machines, entity-relationship diagrams, Gantt charts, pie charts, and more. Covers 90% of diagram use cases.
Can I export Mermaid diagrams as PNG/PDF?
Yes. Mermaid CLI and online tools support export. GitHub also generates static images.

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