# cutie-is

[![NPM Version](https://img.shields.io/npm/v/@cuties/is.svg)](https://npmjs.org/package/@cuties/is)
[![Build Status](https://travis-ci.org/Guseyn/cutie-is.svg?branch=master)](https://travis-ci.org/Guseyn/cutie-is)
[![codecov](https://codecov.io/gh/Guseyn/cutie-is/branch/master/graph/badge.svg)](https://codecov.io/gh/Guseyn/cutie-is)

[Cutie](https://github.com/Guseyn/cutie) extension for checking types in JavaScript. It's based on the [Async Tree Pattern](https://github.com/Guseyn/async-tree-patern/blob/master/Async_Tree_Patern.pdf).

## Examples

You can find examples of using this library in the [test directory](https://github.com/Guseyn/cutie-is/tree/master/test).

## Install

`npm install @cuties/is`

## Run test

`npm test`

## Run build

`npm run build`

## Usage

```js
const {
  // Here needed async objects from the table below
} = require('@cuties/is');
```

| Async Object  | Async/sync call | Parameters | Representation result |
| ------------- | ----------------| ---------- | --------------------- |
| `Is` | `value instanceof clazz` | `value, clazz` | `boolean` |
| `IsArray` | `Array.isArray` | `value` | `boolean` |
| `IsBoolean` | `typeof value === 'boolean'` | `value` | `boolean` |
| `IsDate` | `value instanceof Date` | `value` | `boolean` |
| `IsFunction` | `typeof value === 'function'` | `value` | `boolean` |
| `IsNull` | `typeof value === null` | `value` | `boolean` |
| `IsNumber` | `typeof value === 'number'` | `value` | `boolean` |
| `IsObject` | `typeof value === 'object'` | `value` | `boolean` |
| `IsRealObject` | `typeof value === 'object' && value !== null` | `value` | `boolean` |
| `IsString` | `typeof value === 'string'` | `value` | `boolean` |
| `IsSymbol` | `typeof value === 'symbol'` | `value` | `boolean` |
| `IsUndefined` | `typeof value === 'undefined'` | `value` | `boolean` |


Cutie extension for checking types in JavaScript. 

Supply Chain Attack on Axios Pulls Malicious Dependency from npm

@cuties/is

Cutie extension for checking types in JavaScript.

guseyn

An ambiguous license classifier was found.

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Ambiguous License Classifier

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Bad text encoding

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Bad semver

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What is bad dependency semver?

Bad dependency semver

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What are bidirectional unicode control characters?

Bidirectional unicode control characters

This package has multiple bin scripts with the same name. This can cause non-deterministic behavior when installing or could be a sign of a supply chain attack.

What is bin script confusion?

Bin script confusion

This Chrome extension includes content scripts that execute JavaScript on specified websites.

What are Chrome extension content scripts?

Chrome: Content Script

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What are Chrome extension host permissions?

Chrome: Host Permission

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Chrome: Permission

This Chrome extension requests wildcard host permissions that grant broad access to websites.

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Chrome: Wildcard Host Permission

Semantic versions published out of chronological order.

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Chronological version anomaly

Project maintainer's SSH key has been compromised.

What is a compromised SSH key?

Compromised SSH key

What do I need to know about license files?

Copyleft License

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Title

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High CVE

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Debug access

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Deprecated

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Possible typosquat attack

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Dynamic require

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Empty package

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Environment variable access

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What are extraneous dependencies?

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File dependency

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Filesystem access

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Wildcard dependency

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An input argument to this GitHub Action is being passed back as an output. If a user of this action passes untrusted input, it could be used in an insecure manner by consuming workflows.

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AI-detected potential code anomaly

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AI-detected possible typosquat

AI has identified this package as malware. This is a strong signal that the package may be malicious.

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AI-detected potential malware

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AI-detected potential security risk

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Native code

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High entropy strings

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Unicode homoglyphs

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HTTP dependency

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Install scripts

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Invalid manifest file

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Invisible chars

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Missing dependency

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Modified license exception

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Modified license

What is network access?

Network access

A new npm collaborator published a version of the package for the first time. New collaborators are usually benign additions to a project, but do indicate a change to the security surface area of a package.

Async Object	Async/sync call	Parameters	Representation result
`Is`	`value instanceof clazz`	`value, clazz`	`boolean`
`IsArray`	`Array.isArray`	`value`	`boolean`
`IsBoolean`	`typeof value === 'boolean'`	`value`	`boolean`
`IsDate`	`value instanceof Date`	`value`	`boolean`
`IsFunction`	`typeof value === 'function'`	`value`	`boolean`
`IsNull`	`typeof value === null`	`value`	`boolean`
`IsNumber`	`typeof value === 'number'`	`value`	`boolean`
`IsObject`	`typeof value === 'object'`	`value`	`boolean`
`IsRealObject`	`typeof value === 'object' && value !== null`	`value`	`boolean`
`IsString`	`typeof value === 'string'`	`value`	`boolean`
`IsSymbol`	`typeof value === 'symbol'`	`value`	`boolean`
`IsUndefined`	`typeof value === 'undefined'`	`value`	`boolean`

@cuties/is

cutie-is

Examples

Install

Run test

Run build

Usage

Keywords

Related posts

@cuties/is

cutie-is

Examples

Install

Run test

Run build

Usage

Keywords

Related posts

Axios Maintainer Confirms Social Engineering Attack Behind npm Compromise

Node.js Drops Bug Bounty Rewards After Funding Dries Up