Sorted:

Is input validation for a login form overkill? Overhead + “too much javascript” concerns-Collection of common programming errors

Create a JSONP API in AngularJS & consume with jQuery-Collection of common programming errors

problem about tabindex-Collection of common programming errors

Datatypes and datatype modifiers in C-Collection of common programming errors

how to store an approximate number? (number is too small to be measured)-Collection of common programming errors

problem about ubercart-Collection of common programming errors

Casting nothing into value type : different behaviour depending of the number of indirection-Collection of common programming errors

API Implementation-Collection of common programming errors

push scene by tapping on image-Collection of common programming errors

Can't update user attributes – Rails and Devise-Collection of common programming errors