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code-to-graph

Transforms code (JS) into graphs (graphviz, mermaid flowchart, ...)

Interactive Demo

https://crubier.github.io/code-to-graph/

A bigger example

CLI Usage

Call the cli with a js file name, it prints out the Mermaid.js graph definition

yarn global add code-to-graph
code-to-graph example.js

To see the result visualy, paste it in

https://mermaidjs.github.io/mermaid-live-editor

Or you can use it on gitlab using the ```mermaid language in comments, descriptions or markdown files.

Explanation

Turns this:

x => {
  const a = f(x);
  if (x === 0) {
    let a = null;
    throw new Error("Nooes");
  } else {
    const c = 8;
    return 4;
  }
};

Into this:

graph TD
        statementfroml1c6tol1c19("const a = f(x);")
        statementfroml1c19tol1c90{"x === 0"}
        statementfroml1c29tol1c40("let a = null;")
        statementfroml1c41tol1c65>"throw new Error('Nooes');"]
        style statementfroml1c41tol1c65 fill:#FF9999
        statementfroml1c71tol1c81("const c = 8;")
        statementfroml1c81tol1c89>"return 4;"]
        style statementfroml1c81tol1c89 fill:#99FF99
        statementfroml1c19tol1c90 -- true --> statementfroml1c29tol1c40
        statementfroml1c19tol1c90 -- false --> statementfroml1c71tol1c81
        statementfroml1c29tol1c40 --> statementfroml1c41tol1c65
        statementfroml1c71tol1c81 --> statementfroml1c81tol1c89
        statementfroml1c6tol1c19 --> statementfroml1c19tol1c90

Whichs renders into this:

Example mermaid diagram

About

Transforms JS code 🙈into mermaid flowchart 🐵

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