Quo is a cross-platform variable dumper designed to make debugging easier. It receives data from your application and displays it in a clean desktop interface, allowing you to inspect complex values in real-time without cluttering your terminal or browser console.

Note: This package requires the Quo desktop client to be running to display the debug data.

Noteworthy features

• Environment-Aware: Node and browser environments supported.
• Multiple arguments: Inspect multiple variables or expressions in a single call.
• Expression Parsing: Easy expression debugging e.g. quo(1 + 1) or quo(Math.max(x, y)).

Requirements

• Node.js: >= 20.0.0

Installation

Node.js

Install via npm:

npm install -D @protoqol/quo-ts

Or yarn:

yarn add @protoqol/quo-ts -D

Browser / CDN

You can use quo-ts directly in the browser like so:

<!-- Load the bundled version from CDN -->
<script type="module" src="https://unpkg.com/@protoqol/quo-ts@latest/target/quo.bundle.js"></script>

<script type="module">
    import {quo} from 'https://unpkg.com/@protoqol/quo-ts@latest/target/quo.bundle.js';

    // Also automatically attached to window.quo
    quo("Hello from the browser!");
</script>

In browser environments, you can configure the target host and port by setting them on the window object before calling quo:

window.QUO_HOST = 'http://127.0.0.1';
window.QUO_PORT = '7312';

The correct port can be found in the bottom left in the Quo client. Do note that it is not recommended to change host.

Usage

TypeScript / ESM (Node.js)

Import the quo function and pass variables to inspect. Note that quo is asynchronous.

import {quo} from "@protoqol/quo-ts";

const user = {
    id      : 1,
    username: "jdoe",
};

async function main() {
    const userId = 42;

    // Dump a single variable
    await quo(userId);

    // Dump multiple variables at once
    await quo(userId, user);

    // Some quick maths
    await quo(42 * 42, Math.random());
}

main();

Configuration

You can customise the Quo server address using environment variables in Node.js:

• QUO_HOST: The host where Quo is running (default: http://127.0.0.1).
• QUO_PORT: The port Quo is listening on (default: 7312).

The correct port can be found in the bottom left in the Quo client.

In browser environments, quo-ts defaults to http://127.0.0.1:7312.

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Dependency justification

Package	Used for
uuid	Generates unique UUIDv4 identifiers for each individual dump event, enabling the client to uniquely identify and track them.
xxhashjs	Creates non-cryptographic hashes for variable identification and comparison within the Quo client.

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License

Quo is open-source software licensed under the GPL-3 licence.