Add "header" for compressed items

[hefler]

Since your main goal was to use it with localStorage (similar to mine). It would be interesting to prepend on the compressed string a kind of header. Something along the lines of data URIs in CSS but less verbose. Example:

"lz;<encoded data>"

In that way it makes easier to identify if the data being used is compressed or not.

[Rycochet]

That breaks compatibility - far better for you to do it yourself if there's a possibility it's not compressed.

[hefler]

Fair enough, I've done it myself, I just thought it would be a good "enhancement". Regarding compatibility that would be an easy fix, just add a version flag and check against that, or add some global options for LZString, for instance.

[Rycochet]

It's cross-platform and cross-language compatibility - there's no version string in it, just raw compressed data (which is where the command line archive tools wrap the raw data with all that extra info) ;-)

[JobLeonard]

just add a version flag and check against that

As Rycochet mentioned: that's not so simple because the current format is pure a raw compression string without any metadata. However, I just wrote a proposal for how one might want to approach a newer format in a backwards-compatible way. Have a look.

[hefler]

@JobLeonard That's more like it! 😃 👏