StringBuilder

[evant]

A while ago Jack built a string builder user extension.

Is there any chance of getting this included (and maybe beefed up a bit more) under Ext.util?

[evant]

Bumping this, I think it would be quite useful. There are lots of places in Ext where large strings are built dynamically, it could make some things more efficient.

[jack.slocum]

I did some testing with this and the overhead of the function calls and arguments manipulation in the end made it slower than just building the strings with Array.push/join in all browsers.

I'll have to try it in FF3 though, maybe some things have changed?