Deno

Secure JavaScript and TypeScript runtime. Run, test, lint, and bundle code with built-in tooling and permissions.

54 commands

Browse by Topic

Getting Started

Quick setup and installation

4commands

Run

Execution & permissions

10commands

Package

Package management

8commands

Tasks

Task runner

4commands

Test

Testing framework

8commands

Fmt/Lint

Format & lint

7commands

Compile

Standalone binaries

5commands

Info

Info & documentation

8commands

Install Deno (macOS)

$ brew install deno

Install Deno using Homebrew on macOS

Install Deno (Linux/macOS)

$ curl -fsSL https://deno.land/install.sh | sh

Install Deno using the official installer script

Run example script

$ deno run https://examples.deno.land/hello-world.ts

Run a remote TypeScript file to test Deno

Check version

$ deno --version

Display Deno, V8, and TypeScript versions

Run Script

$ deno run script.ts

Execute a TypeScript/JavaScript file

Run with All Permissions

$ deno run -A script.ts

Run script with all permissions (dev only)

Allow Environment Access

$ deno run --allow-env script.ts

Run with environment variable access

Allow Network Access

$ deno run --allow-net script.ts

Run with network permission

Allow Specific Host

$ deno run --allow-net=api.example.com script.ts

Allow network access to specific host only

Allow File Read

$ deno run --allow-read script.ts

Run with file read permission

Allow File Write

$ deno run --allow-write script.ts

Run with file write permission

Run from URL

$ deno run https://deno.land/std/examples/welcome.ts

Execute script directly from URL

Watch Mode

$ deno run --watch script.ts

Auto-restart on file changes

Serve HTTP

$ deno serve --port 8000 server.ts

Run HTTP server with Deno.serve

Add Package

$ deno add @std/http

Add a JSR package to deno.json

Add npm Package

$ deno add npm:lodash

Add an npm package to deno.json

Cache Dependencies

$ deno cache script.ts

Download and cache dependencies

Install Dependencies

$ deno install

Install all dependencies from deno.json

Check Outdated

$ deno outdated

Check for outdated dependencies

Remove Package

$ deno remove @std/http

Remove a package from deno.json

Update Dependencies

$ deno outdated --update

Update dependencies to latest versions

Vendor Dependencies

$ deno vendor script.ts

Copy remote dependencies to local folder

Run Task

$ deno task <name>

Run a task defined in deno.json

Development Task

$ deno task dev

Run the dev task (commonly defined)

List Tasks

$ deno task

Show all available tasks

Start Task

$ deno task start

Run the start task (commonly defined)

Coverage Report

$ deno coverage coverage --html

Generate HTML coverage report

Run Tests

$ deno test

Execute all tests in project

Test with Coverage

$ deno test --coverage=coverage

Generate coverage data

Fail Fast

$ deno test --fail-fast

Stop on first test failure

Test Specific File

$ deno test tests/my_test.ts

Run tests in a specific file

Filter Tests

$ deno test --filter "test name"

Run tests matching pattern

Parallel Tests

$ deno test --parallel

Run tests in parallel

Watch Tests

$ deno test --watch

Re-run tests on file changes

Type Check

$ deno check script.ts

Type check without running

Format Code

$ deno fmt

Format all files in project

Check Formatting

$ deno fmt --check

Check if files are formatted

Format Specific Files

$ deno fmt src/main.ts src/utils.ts

Format specific files

Lint Code

$ deno lint

Lint all files in project

Lint and Fix

$ deno lint --fix

Auto-fix linting issues

List Lint Rules

$ deno lint --rules

Show all available lint rules

Compile to Binary

$ deno compile script.ts

Create standalone executable

Compile with Assets

$ deno compile --include assets/ script.ts

Embed files into binary

Compile with Output Name

$ deno compile -o myapp script.ts

Compile with custom output name

Compile with Permissions

$ deno compile --allow-read --allow-net script.ts

Bake permissions into binary

Cross-Compile

$ deno compile --target x86_64-unknown-linux-gnu script.ts

Compile for different platform

Generate Docs

$ deno doc script.ts

Generate documentation from JSDoc

Docs as JSON

$ deno doc --json script.ts

Output documentation as JSON

Deno Info

$ deno info

Show Deno installation info

Module Info JSON

$ deno info --json script.ts

Get module info as JSON

Module Info

$ deno info script.ts

Show module dependency tree

Start REPL

$ deno repl

Start interactive REPL

Print Types

$ deno types

Print Deno runtime TypeScript definitions

Upgrade Deno

$ deno upgrade

Upgrade to latest Deno version

Discussion

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Deno

Secure JavaScript and TypeScript runtime. Run, test, lint, and bundle code with built-in tooling and permissions.

54 commands

Browse by Topic

Getting Started

Quick setup and installation

4commands

Run

Execution & permissions

10commands

Package

Package management

8commands

Tasks

Task runner

4commands

Test

Testing framework

8commands

Fmt/Lint

Format & lint

7commands

Compile

Standalone binaries

5commands

Info

Info & documentation

8commands

Install Deno (macOS)

$ brew install deno

Install Deno using Homebrew on macOS

Install Deno (Linux/macOS)

$ curl -fsSL https://deno.land/install.sh | sh

Install Deno using the official installer script

Run example script

$ deno run https://examples.deno.land/hello-world.ts

Run a remote TypeScript file to test Deno

Check version

$ deno --version

Display Deno, V8, and TypeScript versions

Run Script

$ deno run script.ts

Execute a TypeScript/JavaScript file

Run with All Permissions

$ deno run -A script.ts

Run script with all permissions (dev only)

Allow Environment Access

$ deno run --allow-env script.ts

Run with environment variable access

Allow Network Access

$ deno run --allow-net script.ts

Run with network permission

Allow Specific Host

$ deno run --allow-net=api.example.com script.ts

Allow network access to specific host only

Allow File Read

$ deno run --allow-read script.ts

Run with file read permission

Allow File Write

$ deno run --allow-write script.ts

Run with file write permission

Run from URL

$ deno run https://deno.land/std/examples/welcome.ts

Execute script directly from URL

Watch Mode

$ deno run --watch script.ts

Auto-restart on file changes

Serve HTTP

$ deno serve --port 8000 server.ts

Run HTTP server with Deno.serve

Add Package

$ deno add @std/http

Add a JSR package to deno.json

Add npm Package

$ deno add npm:lodash

Add an npm package to deno.json

Cache Dependencies

$ deno cache script.ts

Download and cache dependencies

Install Dependencies

$ deno install

Install all dependencies from deno.json

Check Outdated

$ deno outdated

Check for outdated dependencies

Remove Package

$ deno remove @std/http

Remove a package from deno.json

Update Dependencies

$ deno outdated --update

Update dependencies to latest versions

Vendor Dependencies

$ deno vendor script.ts

Copy remote dependencies to local folder

Run Task

$ deno task <name>

Run a task defined in deno.json

Development Task

$ deno task dev

Run the dev task (commonly defined)

List Tasks

$ deno task

Show all available tasks

Start Task

$ deno task start

Run the start task (commonly defined)

Coverage Report

$ deno coverage coverage --html

Generate HTML coverage report

Run Tests

$ deno test

Execute all tests in project

Test with Coverage

$ deno test --coverage=coverage

Generate coverage data

Fail Fast

$ deno test --fail-fast

Stop on first test failure

Test Specific File

$ deno test tests/my_test.ts

Run tests in a specific file

Filter Tests

$ deno test --filter "test name"

Run tests matching pattern

Parallel Tests

$ deno test --parallel

Run tests in parallel

Watch Tests

$ deno test --watch

Re-run tests on file changes

Type Check

$ deno check script.ts

Type check without running

Format Code

$ deno fmt

Format all files in project

Check Formatting

$ deno fmt --check

Check if files are formatted

Format Specific Files

$ deno fmt src/main.ts src/utils.ts

Format specific files

Lint Code

$ deno lint

Lint all files in project

Lint and Fix

$ deno lint --fix

Auto-fix linting issues

List Lint Rules

$ deno lint --rules

Show all available lint rules

Compile to Binary

$ deno compile script.ts

Create standalone executable

Compile with Assets

$ deno compile --include assets/ script.ts

Embed files into binary

Compile with Output Name

$ deno compile -o myapp script.ts

Compile with custom output name

Compile with Permissions

$ deno compile --allow-read --allow-net script.ts

Bake permissions into binary

Cross-Compile

$ deno compile --target x86_64-unknown-linux-gnu script.ts

Compile for different platform

Generate Docs

$ deno doc script.ts

Generate documentation from JSDoc

Docs as JSON

$ deno doc --json script.ts

Output documentation as JSON

Deno Info

$ deno info

Show Deno installation info

Module Info JSON

$ deno info --json script.ts

Get module info as JSON

Module Info

$ deno info script.ts

Show module dependency tree

Start REPL

$ deno repl

Start interactive REPL

Print Types

$ deno types

Print Deno runtime TypeScript definitions

Upgrade Deno

$ deno upgrade

Upgrade to latest Deno version

Discussion

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