Array Overrides

Code in this post can be obsolete, however, principles and theory may still apply.

On the way of development of my project I came to need to have set methods for javascript Array object especially intersection. Googling has shown up some but they were not LGPL, the licence what I need, so I've written them. The following override contains:

• Ext message box input type configuration
• Conditional Ext.overrideIf
• New Array methods:
  • copy - one dimensional copy method
  • indexOf - index of a value within the array. New browsers may already implement this method, therefore conditional override.
  • lastIndexOf - last index of a value within the array. May be already implemented by browser too.
  • intersect - returns intersection of arrays, for example: [1,3,5,7].intersect([2,3,8,7,5]) returns [3,5,7]
  • union - returns union of arrays, for example: [1,3,5,7].union([2,3,8,7,5]) returns [1,2,3,5,7,8]
  • unique - removes duplicate values from the array and returns result as new array
• Ext.ux.clone - deep object or array cloning function

Overrides code: