Generates TypeScript definitions for p5.js.
The generated typings are published to @types/p5. To install the typings, run npm install --save @types/p5. Then, look in the examples directory for inspiration.

index.d.ts is for p5 used in instance mode and global.d.ts is for p5 in global mode. global.d.ts references index.d.ts, so you must include both if global mode is used.

To generate typings yourself, try out:

npm i
npm run all

the generated typings are put at p5 directory.

p5js has official playground https://editor.p5js.org/, but it misses the typing hint. Here is a solution.

See sketch.js as an exmaple. After generating the types.

/// @ts-check
/// <reference path="../../types/p5/global.d.ts" />

const p5 = require("../../types/p5");

// here comes the code.

use VS Code and Live Server plugin to auto reload your graph when code changes.

the browser will complain in the console that

sketch.js:5 Uncaught ReferenceError: require is not defined
    at sketch.js:5:12

but it works.

1. since this is a tool to generate ts type definition from yui doc, so help improve p5js's yui doc is a big deal. see require upstream
2. when a new version of p5js is released, generate the new type files, then make a pr to https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/p5