j_freyre questions

j_freyre answers

• How to sort NSMutable array in ascending order
• Two NSNumbers created from the same float aren't equal according to ==
• Remove all Popups from OpenLayers Features
• How do I print the values of all declared properties of an NSObject?
• php. why are there exceptions of different classes? ex: PDOException vs Exception?
• Serialize javascript object to json and back
• index on column which is only used for IS NULL and IS NOT NULL
• How to open an existing GitHub project with Xcode?
• How to load layers depending on zoom level?
• How to add new contact to iOS Contacts (Address Book)?