Extensions

Metro 4 objects and types extensions.

Metro 4 contains the number of extensions for standard javascript types and objects.

Object	Extension	Desc
`$.fn`	`toggleAttr(attribute, value)`	toggle element attribute
`$.fn`	`clearClasses()`	remove all element classes
`Array`	`shuffle()`	Shuffle array elements
`Array`	`clone()`	Clone array
`Array`	`unique()`	Get array unique element
`Number`	`format(n, x, s, c)`	Format number value. n: length of decimal, x: length of whole part, s: sections delimiter, c: decimal delimiter
`String`	`capitalize(str)`	Capitalize string
`String`	`contains(substr, index)`	Check if string contains substring
`Date`	`format(format, locale)`	Format Date object (see this article)