TERSER(1)

✨ NAME ✨

terser — it's a toolkit, bestie 💖 that's the whole vibe. A whole lil toolbox for squishing your JavaScript down to its smallest, most efficient self.

🎀 SYNOPSIS 🎀

uglifyjs [options] [files...]

okay so lowkey the binary is called uglifyjs, not terser, and yes that's iconic of it 🫶 you run it, you hand it some [options], you hand it some [files...], and it does its thing.

💅 OPTIONS 💅

grab a snack, this is the main character section 🍓

• -V, --version — spits out the version number, that's it, that's the whole job 💫
• -p, --parse <options> — lets you specify your parser options 🧚
• -c, --compress [options] — turns the compressor ON, or lets you specify compressor options if you wanna get specific ✨
• -m, --mangle [options] — mangles names, or lets you specify mangler options 🔥
• --mangle-props [options] — mangles properties, or lets you specify mangler options for that 🎀
• -b, --beautify [options] — beautifies the output, or lets you specify output options 💅
• -o, --output <file> — the output file, and no cap the default is STDOUT 🫶
• --comments [filter] — preserves copyright comments in the output ⭐
• --config-file <file> — reads minify() options straight out of a JSON file 📄
• -d, --define <expr>[=value] — global definitions 🌍
• --ecma <version> — specifies the ECMAScript release: 5, 6, 7 or 8 👑
• -e, --enclose [arg[,...][:value[,...]]] — embeds your output inside one big function, with configurable arguments and values 🧸
• --ie8 — supports non-standard Internet Explorer 8 😭 (yes, really)
• --keep-classnames — do NOT mangle or drop class names, leave them be 🙈
• --keep-fnames — do NOT mangle or drop function names. genuinely useful if your code is relying on Function.prototype.name 💜
• --module — the input is an ES6 module 📦
• --name-cache <file> — the file that holds your mangled name mappings 🗂️
• --rename — forces symbol expansion 💥
• --no-rename — disables symbol expansion 🚫
• --safari10 — supports non-standard Safari 10 🌈
• --source-map [options] — enables the source map, or lets you specify source map options 🗺️
• --timings — displays operations run time on STDERR ⏱️
• --toplevel — compresses and/or mangles variables in the toplevel scope 🔝
• --verbose — prints diagnostic messages, for when you simply must know everything 👀
• --warn — prints warning messages ⚠️
• --wrap <name> — embeds everything as a function, with ???exports??? corresponding to ???name??? globally 🎁
• -h, --help — displays help for the command, aka the lil hand-holding moment 🫶

and that's the whole page, you ate that 💅

this was terser version 4.1.2, dated February 2022, from the User Commands corner of the manual 💖 periodt. ✨