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

jconv

v0.1.5

Published

Pure JavaScript Iconv for Japanese encodings. (Shift_JIS, ISO-2022-JP, EUC-JP, UTF-8, UCS-2)

Downloads

49,375

Readme

jconv

Pure JavaScript Iconv for Japanese encodings.

Build Status NPM version

  • This module supported the encodings commonly used in Japanese Language:
    Shift_JIS(CP932), ISO-2022-JP(-1), EUC-JP, UTF8, UNICODE(UCS2) conversion.
  • Pure Javascript, no need to compile.
  • Much faster than node-iconv.

[Japanese 日本語]

Installation

$ npm install jconv

Usage

For example simply convert from EUC-JP to Shift_JIS:

var jconv = require( 'jconv' );

var SJISBuffer = jconv.convert( EUCJPBuffer, 'EUCJP', 'SJIS' );

Also available iconv-lite syntax:

var str = jconv.decode( buffer, fromEncoding );

var buf = jconv.encode( 'string', toEncoding );

API

  • jconv( input, fromEncoding, toEncoding )

  • jconv.convert( input, fromEncoding, toEncoding )

    • input {Buffer} or {String}
    • fromEncoding, toEncoding {String}:
      Shift_JIS(SJIS), ISO-2022-JP(JIS), EUCJP, UTF8, UNICODE(UCS2, UTF16LE) are available.
    • return {Buffer}
  • jconv.decode( inputBuffer, fromEncoding )

    • return {String}
  • jconv.encode( inputString, toEncoding )

    • return {Buffer}
  • jconv.encodingExists( encodingName )

    • return {Boolean}

Performance

Comparison with [email protected] by converting Japanese text using Benchmark.js.
Environment is Windows7, core i5 2405-S, mem8G, Node 0.10.22. (Please check on your hardware.)
Gray: iconv, Blue: jconv (higher is better)

jconv - encoding speed test chart [latest log]

Encodings

  • Supported: Shift_JIS(CP932), ISO-2022-JP(-1), EUC-JP, UTF8, UNICODE(UCS2).

  • Supported Windows Dependent Characters <-> JIS Conversion.
    (problem details)

  • "JIS X 0208", "JIS X 0212" and "CP932" have the Unicode Mapping Table Differences, so the specific characters ( ~¢£∥ etc... ) cannot be round-trip converted by default.
    This module corrects this difference as much as possible when converting.
    (problem details)

Development

  • Clone Repository
git clone https://github.com/narirou/jconv.git  
cd jconv  
npm install
  • Generate Tables
# generates the unicode mapping table module in "tables" folder.
node generators/generate-source  
node generators/generate
  • Test
grunt test
  • Speed Test
# First, minify the script by closure-compiler.
grunt minify
node test/speed  
# This results are visualized by chart.js.  
# Plese open "chart/index.html".

Based on

Thank you so much!

Note

Pull requests are welcome.

Todo

  • Streaming API support
  • Support more encodings and languages.