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Re:Show HN: I'm open sourcing Creditly.js, an intuitive cred... by nostromo on Sunday January 26, 2014 @12:08AM (#7123966)
I know you're joking, but we do have all of those in html5.

We have birthday in the form of date (<input type="date">) and telephone (<input type="tel">). For US zip codes and custom-ids you could use type="range" or type="number".

Re:Show HN: I'm open sourcing Creditly.js, an intuitive cred... by yeukhon on Sunday January 26, 2014 @12:22AM (#7123998)
Yeah I know the first two, I wasn't aware of range actually. Looks like browsers still have a long way to catch up each other.

http://caniuse.com/#search=input%20type

Re:Show HN: I'm open sourcing Creditly.js, an intuitive cred... by jlatt on Sunday January 26, 2014 @12:27AM (#7124014)
Zipcodes are not numbers. As a counterexample, MA has codes beginning with 02, e.g. 02135.