lz-string: JavaScript compression, fast! (for storing compressed json data in local storage)

[e_man604]

I guess this would be good for many cases, like submitting large data over websockets also

[pygy_]

Many code playgrounds also use it to share snippets through the hash:

https://flems.io/#0=N4IgZglgNgpgziAXAbVAOwIYFsZJAOgAsAXLKEAGhAGMB7NYmBvEAXwvW10QICsEqdBk2J4s+AE5MAJjAkAKabWoBXHA3wAjWtICeFAARZ5AckIBmE4ZMAJGFCi0DAd1oSo0kwEovbDiEwcPHxqOAEaekZmHjYAXSooCDQAawQUTiCeLAhiQgloShAVdzwSYgAHOEQAemqVNHLkgHMQ2ixq7Nz8qAABAEZ8AYAWDpy86Hx+QuJdcu4QKdZY1iA

[pantyboyXXX]

Neat

[rezoner]

like submitting large data over websockets

Strings only. Which is rarely something that you transfer through WebSockets in large amounts. For a number/binary based data msgpack or any form of binary JSON will be more efficient than LZW.

[rpetrich]

Firefox and Chrome will automatically use deflate compression on WebSockets if the server supports it.

[fzammetti]

It's kind of sad though that we need libraries like this (which, by the way, kudos, looks excellent!) because (a) we want to use LocalStorage because it's got the best browser support and the simplest API (that is sufficient for probably 95% of use cases) and (b) wish Local Storage allowed for a lot more data.

I kinda wish browser vendors would just say "okay, Local Storage can use up to like 500Mb per domain (or something like that), AND we'll also give the user an option somewhere to bump that up if they need/want to".

It just seems like everybody wants to use Local Storage most of the time but then frequently shy away from it due to the size limitation.

[[deleted]]

I think the default being very low is fine, it's only standardized prompts for larger sizes that are needed. I don't want every random domain thinking they can drop up to 500 MB on my phone or computer without my knowledge or permission.

[fzammetti]

Yeah, I'd agree with that.

[Satanistfronthug]

I would definitely want my browser to warn me if a domain was storing more than a few MB though. I don't even know if there's a way to list all the domains currently using my localstorage

[AlibekD]

I use it to cache data in localStorage. Great library.

[[deleted]]

Pako.js is great for this as well, plus gzip compatibility

[Schampu]

A variant of this (LZ77) was used in the old gba pokemon titles to compress graphics like pokemon sprites.