mesqueeb/is-what
JS type check (TypeScript supported) functions like `isPlainObject() isArray()` etc. A simple & small integration.
Star History
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+10
STARS · LAST 30 DAYS
1
PER DAY
#1,151
MOST-STARRED TypeScript
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +0 | +10 | +90 |
| Per day | 1 | 1 | 1 |
| Forks gained | +0 | +3 | +10 |
is-what gained 10 stars in the last 30 days, about 1 a day, and now has 201. It is about 8 years old and has averaged roughly 25 stars a year. It ranks #1,151 among TypeScript repositories and #10,470 across all languages on GitHubRepo.
Trending Record
13
DAYS ON TRENDING
#2891
BEST RANK
Sep 25, 2026
FIRST APPEARANCE
Active
STATUS TODAY
is-what has maintained a continuous presence across global trending indexes, peaking at #2891. Below is the 30-day activity profile:
💡 Overview
is-what is an open-source project written in TypeScript: JS type check (TypeScript supported) functions like `isPlainObject() isArray()` etc. A simple & small integration.
Engineered for speed, consistency, and developer ease, it solves common hurdles in check-type, class-identifier, class-instance. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.
⚡ Key Features
Optimized execution pipeline written in TypeScript for predictable speed.
Zero-friction configuration with comprehensive sensible defaults out of the box.
Cross-platform runtime support across Linux, macOS, and Windows environments.
Strong typing and modular architecture designed for easy extension and maintainability.
Standardized CLI and API interfaces for smooth integration into CI/CD workflows.
Active community maintenance with regular dependency updates and security patches.
📥 Installation
$ npm install is-what⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
Node.js >= 18, npm, pnpm or bun
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
is-what coordinates its core functionality through a modular TypeScript pipeline. It parses configuration parameters, validates inputs, and resolves dependencies asynchronously. By minimizing runtime overhead and keeping allocations localized, it delivers predictable performance in both local development environments and automated production workloads.
🎯 Production Use Cases
Autonomous AI Agents
Orchestrate intelligent workflows and tool-calling routines with is-what.
Model Inference & Prompting
Integrate fast, local or cloud-hosted generative AI models directly into production code.
Context Memory & RAG
Augment language models with dynamic vector retrieval and structured project memory.
Developer Productivity
Automate repetitive engineering tasks, code generation, and test creation using AI agents.
🚀 Getting Started
Install is-what using your package manager: `npm install is-what`
Initialize your project workspace or configuration file for is-what.
Import is-what into your codebase or invoke it directly from your terminal.
Execute your test suite or run `is-what --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with TypeScript, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
mesqueeb/is-what is currently ranked #10,470 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #10,446 | johnbillion/user-switching | PHP | ★ 202 | Compare ↗ |
| #10,446 | dg/ftp-php | PHP | ★ 202 | Compare ↗ |
| #10,446 | eoghanobrien/php-simple-mail | PHP | ★ 202 | Compare ↗ |
| #10,446 | ushahidi/Ushahidi_Android | Java | ★ 202 | Compare ↗ |
| #10,446 | humanfia/humanize | Python | ★ 202 | Compare ↗ |
| #10,470 | mesqueeb/is-what This Project | TypeScript | ★ 201 | |
| #10,470 | ErsatzTV/next | Rust | ★ 201 | Compare ↗ |
| #10,470 | dmaivel/ntoseye | Rust | ★ 201 | Compare ↗ |
| #10,470 | ept/invoicing | Ruby | ★ 201 | Compare ↗ |
| #10,470 | gwenn/sqlite-dialect | Java | ★ 201 | Compare ↗ |
| #10,470 | georgepalmer/couch_foo | Ruby | ★ 201 | Compare ↗ |
Frequently Asked Questions
What does is-what do? +
JS type check (TypeScript supported) functions like `isPlainObject() isArray()` etc. A simple & small integration.
What language is is-what written in? +
The primary language is TypeScript. Topics include: check-type, class-identifier, class-instance, define-type, get-type.
Is is-what actively maintained? +
Yes, the last recorded push was on Sep 30, 2026 with 14 open issues being tracked.
How many stars does is-what have? +
is-what has 201 stars and 19 forks on GitHub.
How does is-what rank among GitHub repositories? +
With 201 stars, mesqueeb/is-what is ranked #10,470 globally across all repositories tracked on GitHubRepo and #1,151 among TypeScript projects.
What license is is-what distributed under? +
The repository reports a MIT license. Always verify the repository LICENSE file for legal terms.
