npmpackage.info

Gathering detailed insights and metrics for @mobily/ts-belt

@mobily/ts-belt - 3.13.1 | npmpackage.info

@mobily/ts-belt

🔧 Fast, modern, and practical utility library for FP in TypeScript.

3.13.1

1,169

MIT

TypeScript

371.74 kB

1.6

Installations

npm install @mobily/ts-belt

Developer Guide

BETA

Typescript

Yes

Module System

CommonJS, ESM

Min. Node Version

>= 10.*

Node Version

16.13.0

NPM Version

8.9.0 Pull Requests

Open

12

Total

29

Closed

2

Merged

15

Issues

Open

39

Total

90

Closed

51

Releases

v4.0.0-rc.5

Updated on Jan 10, 2023

v4.0.0-rc.4

Updated on Jan 04, 2023

v4.0.0-rc.3

Updated on Jan 04, 2023

v4.0.0-rc.2

Updated on Dec 10, 2022

v4.0.0-rc.1

Updated on Nov 29, 2022

v4.0.0-rc.0

Updated on Nov 03, 2022

View All 25 releases

Languages

TypeScript

ReScript

JavaScript

Shell

Reason

TypeScript (75.48%)

ReScript (14.89%)

JavaScript (9.26%)

Shell (0.23%)

Reason (0.15%)

Developer

mobily

Download Statistics

Total Downloads

Last Day

Last Week

Last Month

Last Year

GitHub Statistics

MIT License

1,169 Stars

448 Commits

29 Forks

17 Watchers

2 Branches

8 Contributors

Updated on Jul 11, 2025

Maintainers

View All 8 Contributors

Package Meta Information

Latest Version

3.13.1

Package Id

@mobily/ts-belt@3.13.1

Unpacked Size

371.74 kB

Size

57.16 kB

File Count

NPM Version

8.9.0

Node Version

16.13.0

Total Downloads

Cumulative downloads

Total Downloads

NaN

Last Day

NaN

Compared to previous day

Last Week

NaN

Compared to previous week

Last Month

NaN

Compared to previous month

Last Year

NaN

Compared to previous year

Weekly Downloads

Monthly Downloads

Yearly Downloads

Dev Dependencies

@types/jest @types/jscodeshift all-contributors-cli common-tags coveralls esbuild flow-bin flowgen foy gentype globby jest jscodeshift prettier rescript ts-expect ts-jest ts-node typescript

Fast, modern, and practical utility library for FP in TypeScript.

Documentation

Full documentation can be found here.

Features

🚀 built with ReScript, which generates highly performant JavaScript code (see the benchmark results here)
👀 provides more readable code, due to the data-first approach
✨ supports TypeScript and Flow
🛡 helps you write safer code with Option and Result types
🎯 all functions return immutable data (no side-effects)
🌲 tree-shakeable
📝 fully documented

Getting started

Installation

1yarn add @mobily/ts-belt

or with npm

1npm install @mobily/ts-belt --save

Usage

Module	Namespace	Description
Array	A	Utility functions for `Array`.
Boolean	B	Utility functions for `Boolean`.
Number	N	Utility functions for `Number`.
Object (Dict)	D	Utility functions for `Object`.
String	S	Utility functions for `String`.
Guards	G	Various TypeScript guards.
Option	O	Functions for handling the `Option` data type that represents the existence and nonexistence of a value.
Result	R	Functions for describing the result of a certain operation without relying on exceptions.
Function	F	Other useful functions.

1import { A, O, N, pipe } from '@mobily/ts-belt'
2
3pipe(
4  [1, 2, 3, 4, 5], // → [1, 2, 3, 4, 5]
5  A.dropExactly(2), // → Some([3, 4, 5])
6  O.flatMap(A.head), // → Some(3)
7  O.map(N.multiply(10)), // → Some(30)
8  O.getWithDefault(0), // → 30
9) // → 30

Contributors

_{Marcin Dziewulski} 💻 📖 ⚠️ 🎨 🚧	_{Krzysztof Lenda} 📖	_{Radek Kozieł} 📖	_Artur 📖	_{Dominik Łopaciński} 💻 📖 ⚠️	_{Jakub Wąsik} 📖	_{Krystian Mateusiak} 💻 📖 ⚠️
_{Michał Miszczyszyn} 🤔	_Kevin 📖	_{Anthony Khong} 💻 📖 ⚠️	_Pyrolistical 📖 🚧 🤔	_{Mathieu Acthernoene} 🤔

License

The MIT License.

See LICENSE

No vulnerabilities found.

10

License

Determines if the project has defined a license.

9

Binary-Artifacts

Determines if the project has generated executable (binary) artifacts in the source repository.

0

Maintained

Determines if the project is "actively maintained".

0

Code-Review

Determines if the project requires human code review before pull requests (aka merge requests) are merged.

0

CII-Best-Practices

Determines if the project has an OpenSSF (formerly CII) Best Practices Badge.

0

Security-Policy

Determines if the project has published a security policy.

0

Fuzzing

Determines if the project uses fuzzing.

0

Branch-Protection

Determines if the default and release branches are protected with GitHub's branch protection settings.

0

SAST

Determines if the project uses static code analysis.

0

Vulnerabilities

Determines if the project has open, known unfixed vulnerabilities.

Reason

78 existing vulnerabilities detected

Details

Warn: Project is vulnerable to: GHSA-93q8-gq69-wqmw
Warn: Project is vulnerable to: GHSA-p6mc-m468-83gw
Warn: Project is vulnerable to: GHSA-29mw-wpgm-hmr9
Warn: Project is vulnerable to: GHSA-35jh-r3h4-6jhm
Warn: Project is vulnerable to: GHSA-968p-4wvh-cqc8
Warn: Project is vulnerable to: GHSA-67hx-6x53-jw92
Warn: Project is vulnerable to: GHSA-c2jc-4fpr-4vhg
Warn: Project is vulnerable to: GHSA-fwr7-v2mv-hh25
Warn: Project is vulnerable to: GHSA-wf5p-g6vw-rhxx
Warn: Project is vulnerable to: GHSA-jr5f-v2jv-69x6
Warn: Project is vulnerable to: GHSA-qwcr-r2fm-qrc7
Warn: Project is vulnerable to: GHSA-v6h2-p8h4-qcjw
Warn: Project is vulnerable to: GHSA-grv7-fg5c-xmjg
Warn: Project is vulnerable to: GHSA-pxg6-pf52-xh8x
Warn: Project is vulnerable to: GHSA-7gc6-qh9x-w6h8
Warn: Project is vulnerable to: GHSA-3xgq-45jj-v275
Warn: Project is vulnerable to: GHSA-jrvm-mcxc-mf6m
Warn: Project is vulnerable to: GHSA-mf6x-hrgr-658f
Warn: Project is vulnerable to: GHSA-xrh7-m5pp-39r6
Warn: Project is vulnerable to: GHSA-rv95-896h-c2vc
Warn: Project is vulnerable to: GHSA-qw6h-vgh9-j6wx
Warn: Project is vulnerable to: GHSA-74fj-2j2h-c42q
Warn: Project is vulnerable to: GHSA-pw2r-vq6v-hr8c
Warn: Project is vulnerable to: GHSA-jchw-25xp-jwwc
Warn: Project is vulnerable to: GHSA-cxjh-pqwp-8mfp
Warn: Project is vulnerable to: GHSA-pfrx-2q88-qq97
Warn: Project is vulnerable to: GHSA-rc47-6667-2j5j
Warn: Project is vulnerable to: GHSA-c7qv-q95q-8v27
Warn: Project is vulnerable to: GHSA-4www-5p9h-95mh
Warn: Project is vulnerable to: GHSA-9gqv-wp59-fq42
Warn: Project is vulnerable to: GHSA-78xj-cgh5-2h22
Warn: Project is vulnerable to: GHSA-2p57-rm9w-gvfp
Warn: Project is vulnerable to: GHSA-9c47-m6qq-7p4h
Warn: Project is vulnerable to: GHSA-76p3-8jx3-jpfq
Warn: Project is vulnerable to: GHSA-3rfm-jhwj-7488
Warn: Project is vulnerable to: GHSA-hhq3-ff78-jv3g
Warn: Project is vulnerable to: GHSA-952p-6rrq-rcjv
Warn: Project is vulnerable to: GHSA-f8q6-p94x-37v3
Warn: Project is vulnerable to: GHSA-xvch-5gv4-984h
Warn: Project is vulnerable to: GHSA-qrpm-p2h7-hrv2
Warn: Project is vulnerable to: GHSA-mwcw-c2x4-8c55
Warn: Project is vulnerable to: GHSA-r683-j2x4-v87g
Warn: Project is vulnerable to: GHSA-5rrq-pxf6-6jx5
Warn: Project is vulnerable to: GHSA-8fr3-hfg3-gpgp
Warn: Project is vulnerable to: GHSA-gf8q-jrpm-jvxq
Warn: Project is vulnerable to: GHSA-2r2c-g63r-vccr
Warn: Project is vulnerable to: GHSA-cfm4-qjh2-4765
Warn: Project is vulnerable to: GHSA-x4jg-mjrx-434g
Warn: Project is vulnerable to: GHSA-rp65-9cf3-cjxr
Warn: Project is vulnerable to: GHSA-9wv6-86v2-598j
Warn: Project is vulnerable to: GHSA-rhx6-c78j-4q9w
Warn: Project is vulnerable to: GHSA-7fh5-64p2-3v2j
Warn: Project is vulnerable to: GHSA-3949-f494-cm99
Warn: Project is vulnerable to: GHSA-x7hr-w5r2-h6wg
Warn: Project is vulnerable to: GHSA-hrpp-h998-j3pp
Warn: Project is vulnerable to: GHSA-c2qf-rxjj-qqgw
Warn: Project is vulnerable to: GHSA-m6fv-jmcg-4jfg
Warn: Project is vulnerable to: GHSA-76p7-773f-r4q5
Warn: Project is vulnerable to: GHSA-cm22-4g7w-348p
Warn: Project is vulnerable to: GHSA-4rq4-32rv-6wp6
Warn: Project is vulnerable to: GHSA-64g7-mvw6-v9qj
Warn: Project is vulnerable to: GHSA-4wf5-vphf-c2xc
Warn: Project is vulnerable to: GHSA-w5p7-h5w8-2hfq
Warn: Project is vulnerable to: GHSA-fhg7-m89q-25r3
Warn: Project is vulnerable to: GHSA-hc6q-2mpp-qw7j
Warn: Project is vulnerable to: GHSA-4vvj-4cpr-p986
Warn: Project is vulnerable to: GHSA-wr3j-pwj9-hqq6
Warn: Project is vulnerable to: GHSA-4v9v-hfq4-rm2v
Warn: Project is vulnerable to: GHSA-9jgg-88mc-972h
Warn: Project is vulnerable to: GHSA-3h5v-q93c-6h6q
Warn: Project is vulnerable to: GHSA-w573-4hg7-7wgq
Warn: Project is vulnerable to: GHSA-ww39-953v-wcq6
Warn: Project is vulnerable to: GHSA-896r-f27r-55mw
Warn: Project is vulnerable to: GHSA-hj48-42vr-x3v9
Warn: Project is vulnerable to: GHSA-p8p7-x288-28g6
Warn: Project is vulnerable to: GHSA-gcx4-mw62-g8wm
Warn: Project is vulnerable to: GHSA-72xf-g2v4-qvf3
Warn: Project is vulnerable to: GHSA-c4w7-xm78-47vh

Score

1.6

/10

Last Scanned on 2025-07-07

The Open Source Security Foundation is a cross-industry collaboration to improve the security of open source software (OSS). The Scorecard provides security health metrics for open source projects.

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