I think it's a mater of the priorities of the language developers. <I've removed my thoughts on regex here because others have posted with more knowledge on th

I think it's a mater of the priorities of the language developers. <I've removed my thoughts on regex here because others have posted with more knowledge on the subject> As for runtime reflection, it's a very handy tool which allows for quick development iteration. The page you link generates more efficient Go code, however it comes at the price of being more brittle. I've used standard library json package for things like reading a config file, where the time difference isn't noticeable. One size doesn't fit all, and if you're application really needs to parse lots of json quickly, then a more rigid approach may be in order.