npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

@gisce/conscheck

v1.0.11

Published

A JavaScript library for evaluating JSON-based conditions. It allows complex conditional logic to be defined and interpreted from JSON structures, enabling dynamic decision-making in applications.

Downloads

816

Readme

@gisce/conscheck

@gisce/conscheck is a versatile TypeScript library for evaluating JSON-based conditions in JavaScript. It allows the definition of complex conditional logic to be interpreted from JSON structures, enabling dynamic and flexible decision-making within applications.

Features

  • Evaluate conditions defined in JSON format.
  • Support for both simple and nested conditions.
  • Operators include '=', '>=', '<=', '>', '<', and '!='.
  • Compatible with both client-side and server-side JavaScript.

Installation

To install the library, use npm:

npm install @gisce/conscheck

Usage

Here is a basic example of how to use @gisce/conscheck:

import { evaluateCondition } from "@gisce/conscheck";

const condition = {
  condition: "AND",
  rules: [
    {
      field: "age",
      operator: ">=",
      value: 18,
    },
    {
      field: "citizenship",
      operator: "=",
      value: true,
    },
  ],
};

const object = { age: 20, citizenship: true };

const result = evaluateCondition({ object, condition });
console.log(result); // Output: true

Nested Conditions

@gisce/conscheck also supports nested conditions. Here's an example:

const nestedCondition = {
  condition: "OR",
  rules: [
    {
      condition: "AND",
      rules: [
        {
          field: "age",
          operator: ">=",
          value: 65,
        },
        {
          field: "retired",
          operator: "=",
          value: true,
        },
      ],
    },
    {
      field: "age",
      operator: "<",
      value: 18,
    },
  ],
};

const object = { age: 70, retired: true };

const nestedResult = evaluateCondition({ object, condition: nestedCondition });
console.log(nestedResult); // Output: true

Optional evaluateFieldComparison Function

You can pass a function to evaluateCondition to modify the default field comparison behaviour. This function will be called for each field comparison in the condition, and has the following signature:

function evaluateFieldComparison({
  fieldName,
  valueInObject,
  expectedValue,
}: FieldComparisonParams): FieldComparisonResult;

The function should return a FieldComparisonResult object, which has the following structure:

interface FieldComparisonResult {
  modifiedValueInObject?: any;
  modifiedExpectedValue?: any;
  directOutcome?: boolean;
}

Contributing

Contributions to @gisce/conscheck are welcome. Please feel free to submit pull requests or open issues to improve the library.

License

This project is licensed under the MIT License - see the LICENSE file for details.