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Built-in Node.js globals
- APIs

Node → Deno cheatsheet

Node.js	Deno
`node file.js`	`deno run file.js`
`ts-node file.ts`	`deno run file.ts`
`nodemon`	`deno run --watch`
`node -e`	`deno eval`
`npm i` / `npm install`	`deno install`
`npm install -g`	`deno install -g`
`npm run`	`deno task`
`eslint`	`deno lint`
`prettier`	`deno fmt`
`package.json`	`deno.json` or `package.json`
`tsc`	`deno check` ¹
`typedoc`	`deno doc`
`jest` / `ava` / `mocha` / `tap` / etc	`deno test`
`nexe` / `pkg`	`deno compile`
`npm explain`	`deno info`
`nvm` / `n` / `fnm`	`deno upgrade`
`tsserver`	`deno lsp`
`nyc` / `c8` / `istanbul`	`deno coverage`
benchmarks	`deno bench`

¹ Type checking happens automatically, TypeScript compiler is built into the deno binary.

Built-in Node.js globals Jump to heading

Deno provides a similar set of built-in globals as Node.js, but with some differences. Here are some common ones:

Node.js	Deno
`process.cwd()`	`Deno.cwd()`
`process.env.MY_ENV`	`Deno.env.get("MY_ENV")`
`process.env.MY_ENV = "foo"`	`Deno.env.set("MY_ENV", "foo")`
`process.platform`	`Deno.build.os`
`process.arch`	`Deno.build.arch`
`process.execPath()`	`Deno.execPath()`
`process.exist(code)`	`Deno.exit(code)`

It is also possible to import Node.js modules into your project using the node: specifier. For example:

import process from "node:process";

APIs Jump to heading

Node.js	Deno
`fsPromises.readFile(filePath, "utf-8")`	`Deno.readTextFile(filePath)`