oxo questions

• How could I display (x,y) coordinates on image in real-time to the user when the user hovers his mouse over the image?
• How could I remove the last character from a string if it is a punctuation, in ruby?
• How can I modify an existing column's data type?
• How could I check to see if a word exists in a string, and return false if it doesn't, in ruby?
• How do I remove all characters in a string until a substring is matched, in Ruby?
• How can I force my footer to stick to the bottom of any page in CSS?
• How do I change my author name on GitHub?

oxo answers