@fjst/core

fjst's core. A small collection of source transforms for JavaScript output.

Install

npm install @fjst/core
bun add @fjst/core

API

jsObf(src: string): string

Obfuscates JavaScript source code. A thin wrapper around javascript-obfuscator.

import { jsObf } from "@fjst/core";

const obfuscated = jsObf("const answer = 42;");

jsMinify(src: string, filepath: string): string

Minifies JavaScript source code. A thin wrapper around oxc-minify. filepath is passed through to oxc-minify and is used to determine how the source should be parsed.

import { jsMinify } from "@fjst/core";

const minified = jsMinify("const answer = 42;", "answer.js");

jsTranspile(target: string | string[]): (src: string, filepath: string) => string

Downlevels JavaScript to a given ECMAScript target. A thin wrapper around oxc-transform. Unlike jsObf and jsMinify, this is a factory: call it with a target to get back a transpiler.

import { jsTranspile } from "@fjst/core";

const transpiler = jsTranspile("es2015");
const transpiled = transpiler("const add = (a, b) => a + b;", "add.js");

Targeting older environments may emit require("@oxc-project/runtime/...") helper calls (e.g. for private class fields); install @oxc-project/runtime if you use those features.

All three functions match the Transpiler shape expected by @fjst/sveltekit and can be passed directly into it (jsTranspile once called with a target).