---
id: kb-2026-00299
title: Deno
schema_type: TechArticle
category: computer-science
language: en
confidence: low
last_verified: "2026-05-28"
created_date: "2026-05-22"
generation_method: ai_structured
derived_from_human_seed: true
conflict_of_interest: none_declared
is_live_document: false
data_period: static
atomic_facts:
  - id: fact-deno-1
    statement: Deno is a JavaScript, TypeScript, and WebAssembly runtime built on V8 and Rust.
    source_title: "Deno Manual: Introduction"
    source_url: https://docs.deno.com/runtime/manual/
    confidence: low
  - id: fact-deno-2
    statement: Deno has built-in TypeScript support without a separate build step for many workflows.
    source_title: TypeScript
    source_url: https://docs.deno.com/runtime/fundamentals/typescript/
    confidence: low
  - id: fact-deno-3
    statement: >-
      Deno uses explicit permissions for access such as filesystem, network, and environment
      variables.
    source_title: Permissions
    source_url: https://docs.deno.com/runtime/fundamentals/security/
    confidence: low
completeness: 0.88
known_gaps:
  - This compact repair keeps only source-mapped public claims from the sampled audit entry.
disputed_statements: []
primary_sources:
  - title: "Deno Manual: Introduction"
    type: course_material
    year: 2025
    url: https://docs.deno.com/runtime/manual/
    institution: Deno
  - title: TypeScript
    type: course_material
    year: 2025
    url: https://docs.deno.com/runtime/fundamentals/typescript/
    institution: Deno
  - title: Permissions
    type: course_material
    year: 2025
    url: https://docs.deno.com/runtime/fundamentals/security/
    institution: Deno
secondary_sources: []
updated: "2026-05-28"
---

## TL;DR

Deno is a secure JavaScript and TypeScript runtime with built-in tooling and explicit permissions. This repair maps Deno claims to official documentation.

## Core Explanation

The sampled article had low source coverage. This repaired version keeps three source-mapped facts about runtime, TypeScript support, and permissions.

## Further Reading

- [Deno Manual: Introduction](https://docs.deno.com/runtime/manual/)
- [TypeScript](https://docs.deno.com/runtime/fundamentals/typescript/)
- [Permissions](https://docs.deno.com/runtime/fundamentals/security/)