View utfx on Snyk Open Source Advisor

Package Health Score

48 / 100

security
No known security issues
popularity
Small
maintenance
Inactive
community
Limited

Explore Similar Packages

Security

No known security issues

All security vulnerabilities belong to production dependencies of direct and indirect packages.

Security and license risk for significant versions

All Versions

Version				Vulnerabilities	License Risk
1.0.1	\|	06/2015	Popular	0 C 0 H 0 M 0 L	0 H 0 M 0 L
0.9.1	\|	06/2014		0 C 0 H 0 M 0 L	0 H 0 M 0 L
0.10.0	\|	06/2014		0 C 0 H 0 M 0 L	0 H 0 M 0 L
0.11.1	\|	06/2014		0 C 0 H 0 M 0 L	0 H 0 M 0 L
0.12.1	\|	06/2014		0 C 0 H 0 M 0 L	0 H 0 M 0 L

License

Apache-2.0

Security Policy

Is your project affected by vulnerabilities?

Scan your projects for vulnerabilities. Fix quickly with automated fixes. Get started with Snyk for free.

Get started free

Popularity

Small

Weekly Downloads (3,196)

GitHub Stars: 52
Forks: 16
Contributors: 1

Direct Usage Popularity

The npm package utfx receives a total of 3,196 downloads a week. As such, we scored utfx popularity level to be Small.

Based on project statistics from the GitHub repository for the npm package utfx, we found that it has been starred 52 times.

Downloads are calculated as moving averages for a period of the last 12 months, excluding weekends and known missing data points.

Community

Limited

Readme.md: Yes
Contributing.md: No
Code of Conduct: No
Contributors: 1
Funding: No

This project has seen only 10 or less contributors.

We found a way for you to contribute to the project! Looks like utfx is missing a Code of Conduct.

Embed Package Health Score Badge

Maintenance

Inactive

archived

Commit Frequency

No Recent Commits

Open Issues: 0
Open PR: 0
Last Release: 10 years ago
Last Commit: 10 years ago

Further analysis of the maintenance status of utfx based on released npm versions cadence, the repository activity, and other data points determined that its maintenance is Inactive.

An important project maintenance signal to consider for utfx is that it hasn't seen any new versions released to npm in the past 12 months, and could be considered as a discontinued project, or that which receives low attention from its maintainers.

In the past month we didn't find any pull request activity or change in issues status has been detected for the GitHub repository.

Keep your project healthy

Check your package.json

Ensure all the packages you're using are healthy and well-maintained

Snyk Vulnerability Scanner

Get health score & security insights directly in your IDE

Package

Node.js Compatibility: >=0.8

Age: 10 years
Dependencies: 0 Direct
Versions: 21
Install Size: 0 B
Dist-tags: 1
# of Files: 0
Maintainers: 1
TS Typings: No

utfx has more than a single and default latest tag published for the npm package. This means, there may be other tags available for this package, such as next to indicate future releases, or stable to indicate stable releases.

Readme

utfx is a compact library to encode, decode and convert UTF8 / UTF16 in JavaScript using arbitrary sources and destinations through the use of successively called functions, basically eliminating memory overhead.

The standalone library is also capable of using binary strings and arrays (with the usual overhead) and provides polyfills for String.fromCodePoint and String#codePointAt.

API

encodeUTF8(src, dst)

Encodes UTF8 code points to UTF8 bytes.

Parameter	Type	Description
src	*function():(number	null)
dst	function(number)	Bytes destination as a function successively called with the next byte

decodeUTF8(src, dst)

Decodes UTF8 bytes to UTF8 code points.

Parameter	Type	Description
src	*function():(number	null)*
dst	function(number)	Code points destination as a function successively called with each decoded code point.
@throws	RangeError	If a starting byte is invalid in UTF8
@throws	Error	If the last sequence is truncated. Has an array property `bytes` holding the remaining bytes.

UTF16toUTF8(src, dst)

Converts UTF16 characters to UTF8 code points.

Parameter	Type	Description
src	*function():(number	null)*
dst	function(number)	Code points destination as a function successively called with each converted code point.

UTF8toUTF16(src, dst)

Converts UTF8 code points to UTF16 characters.

Parameter	Type	Description
src	*function():(number	null)
dst	function(number)	Characters destination as a function successively called with each converted char code.
@throws	RangeError	If a code point is out of range

encodeUTF16toUTF8(src, dst)

Converts and encodes UTF16 characters to UTF8 bytes.

Parameter	Type	Description
src	*function():(number	null)*
dst	function(number)	Bytes destination as a function successively called with the next byte.

decodeUTF8toUTF16(src, dst)

Decodes and converts UTF8 bytes to UTF16 characters.

Parameter	Type	Description
src	*function():(number	null)*
dst	function(number)	Characters destination as a function successively called with each converted char code.
@throws	RangeError	If a starting byte is invalid in UTF8
@throws	Error	If the last sequence is truncated. Has an array property `bytes` holding the remaining bytes.

assertByte(b)

Asserts a byte value.

Parameter	Type	Description
b	number	8bit byte value
@returns	number	Valid byte value
@throws	TypeError	If the byte value is invalid
@throws	RangeError	If the byte value is out of range

assertCharCode(c)

Asserts an UTF16 char code.

Parameter	Type	Description
c	number	UTF16 char code
@returns	number	Valid char code
@throws	TypeError	If the char code is invalid
@throws	RangeError	If the char code is out of range

assertCodePoint(cp)

Asserts an UTF8 code point.

Parameter	Type	Description
cp	number	UTF8 code point
@returns	number	Valid code point
@throws	TypeError	If the code point is invalid
@throws	RangeError	If the code point is out of range

calculateCodePoint(cp)

Calculates the byte length of an UTF8 code point.

Parameter	Type	Description
cp	number	UTF8 code point
@returns	number	Byte length

calculateUTF8(src)

Calculates the number of UTF8 bytes required to store UTF8 code points.

Parameter	Type	Description
src	*function():(number	null)*
@returns	number	The number of UTF8 bytes required

calculateUTF16asUTF8(src)

Calculates the number of UTF8 code points respectively UTF8 bytes required to store UTF16 char codes.

Parameter	Type	Description
src	*function():(number	null)*
@returns	!Array.<number>	The number of UTF8 code points at index 0 and the number of UTF8 bytes required at index 1.

arraySource(a)

Creates a source function for an array.

Parameter	Type	Description
a	!Array.<number>	Array to read from
@returns	*function():(number	null)*
@throws	TypeError	If the argument is invalid

arrayDestination(a)

Creates a destination function for an array.

Parameter	Type	Description
a	!Array.<number>	Array to write to
@returns	function(number)	Destination function successively called with the next value.
@throws	TypeError	If the argument is invalid

stringSource(s)

Creates a source function for a string.

Parameter	Type	Description
s	string	String to read from
@returns	*function():(number	null)*
@throws	TypeError	If the argument is invalid

stringDestination()

Creates a destination function for a string.

Parameter	Type	Description
@returns	*function(number=):(undefined	string)*

fromCodePoint(var_args)

A polyfill for String.fromCodePoint.

Parameter	Type	Description
var_args	...number	Code points
@returns	string	JavaScript string
@throws	TypeError	If arguments are invalid or a code point is invalid
@throws	RangeError	If a code point is out of range

codePointAt(s, i)

A polyfill for String#codePointAt.

Parameter	Type	Description
s	string	JavaScript string
i	number	Index
@returns	*number	undefined*
@throws	TypeError	If arguments are invalid

polyfill(override=)

Installs utfx as a polyfill for String.fromCodePoint and String#codePointAt if not implemented.

Parameter	Type	Description
override	boolean	Overrides an existing implementation if `true`, defaults to `false`
@returns	!Object.<string,>*	utfx namespace

Usage

node.js: npm install utfx
```
var utfx = require("utfx");
...
```
Browser: ``
```
var utfx = dcodeIO.utfx;
...
```

Require.js/AMD

require.config({
    "paths": {
        "utfx": "/path/to/utfx.min.js"
    }
});
require(["utfx"], function(utfx) {
    ...
}

Downloads

Distributions

FAQ and examples

Wiki

License

Apache License, Version 2.0

utfx development dependencies

closurecompiler metascript pretty-hrtime testjs utf8

FAQs

What is utfx?

A compact library to encode, decode and convert UTF8 / UTF16 in JavaScript. Visit Snyk Advisor to see a full health score report for utfx, including popularity, security, maintenance & community analysis.

Is utfx popular?

The npm package utfx receives a total of 3,196 weekly downloads. As such, utfx popularity was classified as small. Visit the popularity section on Snyk Advisor to see the full health analysis.

Is utfx well maintained?

We found indications that utfx is an Inactive project. See the full package health analysis to learn more about the package maintenance status.

Is utfx safe to use?

The npm package utfx was scanned for known vulnerabilities and missing license, and no issues were found. Thus the package was deemed as safe to use. See the full health analysis review.

Last updated on 17 December-2024, at 02:38 (UTC).

Build a secure application checklist

Select a recommended open source package

Minimize your risk by selecting secure & well maintained open source packages

DONE

Scan your app for vulnerabilities

Scan your application to find vulnerabilities in your: source code, open source dependencies, containers and configuration files

SCAN NOW

Fix identified vulnerabilities

Easily fix your code by leveraging automatically generated PRs

AUTO FIX

Monitor for new issues

New vulnerabilities are discovered every day. Get notified if your application is affected

MONITOR APP

Package Health Score

Explore Similar Packages

Security and license risk for significant versions

Is your project affected by vulnerabilities?

Weekly Downloads (3,196)

Direct Usage Popularity

Embed Package Health Score Badge

Commit Frequency

Keep your project healthy

Check your package.json

Snyk Vulnerability Scanner

Readme

API

encodeUTF8(src, dst)

decodeUTF8(src, dst)

UTF16toUTF8(src, dst)

UTF8toUTF16(src, dst)

encodeUTF16toUTF8(src, dst)

decodeUTF8toUTF16(src, dst)

assertByte(b)

assertCharCode(c)

assertCodePoint(cp)

calculateCodePoint(cp)

calculateUTF8(src)

calculateUTF16asUTF8(src)

arraySource(a)

arrayDestination(a)

stringSource(s)

stringDestination()

fromCodePoint(var_args)

codePointAt(s, i)

polyfill(override=)

Usage

Downloads

FAQ and examples

License

utfx development dependencies

FAQs

What is utfx?

Is utfx popular?

Is utfx well maintained?

Is utfx safe to use?

Build a secure application checklist

Select a recommended open source package

Scan your app for vulnerabilities

Source Code

Open Source

Container

Config

Fix identified vulnerabilities

Monitor for new issues