Grundy questions

Grundy answers

• Array push, duplicate elements
• Convert from an Interface type to a concrete Type in C# and reflection
• Regex to restrict input into latitude (in decimal degrees) textbox
• Getting the array index for an item based on one of its properties
• Deserializing JSON to abstract class
• OrderBy and progressive-loading AngularJS
• How to combine two arrays as a cartesian product?
• Correct async function export in node.js
• Javascript parse string to integer
• Convert an Expression<Func<T,bool>> to an Expression<Func<T1,bool>> so that T is a member of T1