WASM-PACK(1)

💖 WASM-PACK — bestie, we're building an npm package 💖

okay so this is the manual for wasm-pack build, part of the wasm-pack family of User Commands, and honestly? it's giving "compile my Rust into something the JS girlies can install." no cap. 🦋

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✨ NAME ✨

wasm-pack build — ??????? build your npm package! 🌸

(yeah bestie the question marks are literally in the source. we don't ask. we don't explain. we just build your npm package.) 💅

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🌈 SYNOPSIS 🌈

wasm-pack build [OPTIONS] [PATH] [EXTRA_OPTIONS]...

that's it. that's the whole vibe. ✨

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🎀 DESCRIPTION 🎀

??????? build your npm package! 🫶

like. that's the description. that's what it does. it builds your npm package. iconic behaviour, honestly.

🧚 Arguments: (the lil positional ones)

• [PATH] — this is the path to your Rust crate, bestie. and if you don't set it? it goes on a lil adventure and searches up the path from your current directory to find one. so thoughtful. so main character. 💖
• [EXTRA_OPTIONS]... — a whole list of extra options you wanna pass straight through to cargo build. yes, plural, you can keep adding them. it's a whole buffet. 🍓

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👑 OPTIONS 👑

every single one, fr fr, no skips:

• -s, --scope <SCOPE> — the npm scope to use in package.json, if you have one. no scope? no problem, just don't pass it. 💜
• -m, --mode <MODE> — sets which steps get run. possible values are: no-install, normal, force. default is normal. (don't be weird about it, normal is a great choice.) ✨
• --no-typescript — by default a *.d.ts file gets generated alongside the generated JS file, but this flag says "no thank you ma'am" and disables generating that TypeScript file. some of us rawdog JS, and that's valid. 💅
• --weak-refs — turns on usage of the JS weak references proposal. 🧚
• --reference-types — turns on usage of WebAssembly reference types. 🔥
• -t, --target <TARGET> — sets the target environment. possible values: bundler, nodejs, web, no-modules, deno. default is bundler. pick your fighter. 👑
• --debug — Deprecated. it got renamed to --dev. it's the old name living its lil retirement era. use --dev instead, bestie. 😭
• --dev — makes a development build. enables debug info, disables optimizations. the chill, fast, slightly messy build. 🙈
• --release — makes a release build. enables optimizations, disables debug info. the polished, put-together, going-to-production build. 💖
• --profiling — makes a profiling build. enables optimizations and debug info. yes, both. she can do both. it's giving multitasking. ✨
• --profile <PROFILE> — a user-defined profile, passed with the --profile flag. your profile, your rules. 🎀
• -d, --out-dir <OUT_DIR> — sets the output directory using a relative path. default is pkg. 🌸
• --out-name <OUT_NAME> — sets the output file names. defaults to the package name. 🦋
• --no-pack — the option to not generate a package.json. sometimes you just don't want one. respect. 💅
• --no-opt — the option to skip optimization with wasm-opt. 💜
• --panic-unwind — buckle up bestie, this one's a whole saga. builds with panic=unwind. it requires the nightly Rust toolchain — and it uses -Z build-std to rebuild std with -Cpanic=unwind, so that panics can be caught at FFI boundaries instead of aborting the WebAssembly instance. and if you don't already have them? the nightly toolchain, the rust-src component, and the nightly wasm32-unknown-unknown target all get installed via rustup. it just does that. it's got main character energy fr. 🔥
• -h, --help — print help. the classic. the icon. the "when in doubt" move. ✨

⚠️ heads up bestie: --debug is deprecated and got renamed to --dev. and --panic-unwind is out here demanding nightly — no nightly, no service. live your truth, but know what you're signing up for. 💖

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and that's the whole page!! now go forth and build something cute. mwah. 💜

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sign-off time, my little gremlins: this was wasm-pack build version 0.15.0+ds, dated June 2026, filed under the name WASM-PACK(1). love her, respect her, man her again whenever you forget a flag. periodt. 💅✨🦋