Examples of JavaScript objects practical usage Uint8Array, URI, etc.

U.Event
U.Param
U.ParamSet
U.cc
U.prototype.init
UAParser
UE.Editor
UE.uNode
UI.components
UIMorphingButton
UISearch
URI
URIError
URL
URL.
URLToken
UTCDate
UUIDjs
UiGridCellNav
Uint16Array
Uint32Array
Uint8Array
Uint8ClampedArray
UncaughtException
UndoManager
Unicode
Unipointer
Unslider
Uri
Url
UrlCode
UrlHelper
UrlMatcher
UrlSearch
User
UserAgent
UserLogin
Util
u.BehaviorSubject
u.Collection
u.Corner
u.Deferred
u.Dependency
u.Event
u.F
u.ObjectID
u.Player
u.Ticker
u.Visitor
u.X
u.Xa
u.Z
u.a
u.b
u.cb
u.d
u.default
u.eb
u.f
u.g
u.ga
u.k
u.kb
u.la
u.type
uNode
ue.Event
ue.fn.init
ui.navigation
unique
unqiue
upTarget
updates
url
user
user_rating
users
ut.Event
ut.fn.init
util.XHRDataSource
util_1.Expression
util_1.Statement