How to Check Deno Version Quickly and Easily

To check the installed deno version, run the command deno --version in your terminal. This shows the Deno runtime version along with versions of its components like V8 and TypeScript.

Syntax

The command to check the Deno version is simple and direct.

• deno: The Deno runtime command.
• --version: The flag that tells Deno to print its version information.

bash

deno --version

Example

This example shows how to run the command in a terminal and what output to expect.

bash

deno --version

Output

deno 1.36.4
v8 11.9.194.7
typescript 5.1.6

Common Pitfalls

Some common mistakes when checking the Deno version include:

• Typing deno -v which does not work because Deno uses --version instead.
• Running the command in a terminal where Deno is not installed or not in the system PATH, resulting in an error like command not found.
• Confusing Deno version with Node.js version; they are different runtimes.

bash

Wrong command:
denov

Right command:
deno --version

Quick Reference

Remember these quick tips:

• Use deno --version to check version.
• Ensure Deno is installed and in your PATH.
• Output includes Deno, V8, and TypeScript versions.

Key Takeaways

Run deno --version in your terminal to see the installed Deno version.

The output shows Deno, V8 engine, and TypeScript versions together.

Avoid using -v as it is not recognized by Deno.

Make sure Deno is installed and accessible in your system PATH before running the command.