socket.io source code

Every file of socket.io@4.8.4 as published on npm: 28 files, 513 KB. Search them by exact text or regex, in milliseconds.

It uses: new Function(), process.env, the fs module, http / https, fetch(), XMLHttpRequest, crypto.

What socket.io uses

API	In socket.io
eval() runs a string as JavaScript	No	Who does
new Function() builds a function from a string, like eval (with or without new)	Yes: 4 files e.g. `client-dist/socket.io.esm.min.js`	See the lines
child_process starts other programs	No	Who does
process.env reads environment variables	Yes: 1 file e.g. `client-dist/socket.io.js`	See the lines
the fs module reads and writes files	Yes: 2 files e.g. `dist/index.js`	See the lines
http / https makes or serves HTTP requests with Node's own modules	Yes: 6 files e.g. `dist/index.js`	See the lines
fetch() makes HTTP requests	Yes: 1 file e.g. `client-dist/socket.io.esm.min.js`	See the lines
XMLHttpRequest makes HTTP requests the old browser way	Yes: 4 files e.g. `client-dist/socket.io.esm.min.js`	See the lines
crypto hashes, encrypts or makes random numbers	Yes: 1 file e.g. `dist/contrib/base64id.js`	See the lines
WebAssembly loads WebAssembly code	No	Who does
document.cookie reads or writes browser cookies	No	Who does
install scripts runs a script when it's installed	No	Who does

Exact matches in the published files, so a mention in a comment counts too: open the lines to check.

File	Size
`client-dist/socket.io.js`	154 KB
`client-dist/socket.io.msgpack.min.js`	51 KB
`client-dist/socket.io.min.js`	47 KB
`client-dist/socket.io.esm.min.js`	41 KB
`dist/socket.js`	30 KB
`dist/index.js`	29 KB
`dist/index.d.ts`	20 KB
`dist/socket.d.ts`	20 KB
`dist/namespace.js`	19 KB
`Readme.md`	17 KB
`dist/namespace.d.ts`	16 KB
`dist/broadcast-operator.js`	16 KB
`dist/broadcast-operator.d.ts`	11 KB
`dist/typed-events.d.ts`	10.0 KB
`dist/client.js`	8.3 KB
`dist/uws.js`	5.7 KB
`dist/parent-namespace.js`	3.6 KB
`dist/contrib/base64id.js`	2.9 KB
`dist/client.d.ts`	2.9 KB
`dist/typed-events.js`	2.6 KB
`package.json`	2.1 KB
`dist/socket-types.d.ts`	1.6 KB
`dist/parent-namespace.d.ts`	1.4 KB
`LICENSE`	1.1 KB
`dist/socket-types.js`	267 B
`dist/uws.d.ts`	171 B
`wrapper.mjs`	82 B
`dist/contrib/base64id.d.ts`	81 B

How many files are in socket.io?

Version 4.8.4 of socket.io publishes 28 files of source, 513 KB in all, not counting images, fonts and source maps.

Does socket.io use eval?

No: socket.io doesn't call eval() anywhere in its published files.

Does socket.io start other programs?

No: socket.io doesn't use child_process anywhere in its published files.

Does socket.io run an install script?

No: socket.io has no preinstall, install or postinstall script in its package.json.

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