bin2js / js2bin

• convert a binary file to a js (JavaScript source) file for WASM, images or anything!
• reconvert a js file to a binary file (js2bin)

$ deno run -A https://code4fukui.github.io/bin2js/bin2js.js somefile.bin
$ ls -l somefile.bin.js

import bin from "./somefile.bin.js";
console.log(bin);

example

test.wasm 96byte

$ cd example
$ deno run -A https://code4fukui.github.io/bin2js/bin2js.js test.wasm
$ ls -l test.wasm.js
212byte

test.wasm.js

import{Base128}from"https://code4fukui.github.io/Base128/Base128.js"
export default Base128.decode("�.6h��� @���@@����� q��m2[-w�d���n7#�dt��#��`���h���ÁÈ ���@ @$��H¤�aPĀ ÚD���AÚD��0��H�x,")

to import

import bin from "./test.wasm.js";
console.log(bin); // Uint8Array(96) [0,  97, 115, 109, ...

reconvert to binnary file

$ deno run -A https://code4fukui.github.io/bin2js/js2bin.js test.wasm.js
$ ls -l test.wasm
96byte

options

gzip compression

nodejs-lib-ruby-parser.wasm 721KB

$ cd example
$ deno run -A https://code4fukui.github.io/bin2js/bin2js.js nodejs-lib-ruby-parser.wasm --gzip
$ ls -l nodejs-lib-ruby-parser.wasm.js
213KB

encode by Base64

nodejs-lib-ruby-parser.wasm 721KB

$ cd example
$ deno run -A https://code4fukui.github.io/bin2js/bin2js.js nodejs-lib-ruby-parser.wasm --base64 --gzip
$ ls -l nodejs-lib-ruby-parser.wasm.js
248KB

blog

• https://fukuno.jig.jp/3821