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Filtering Out Duplicate Array Entries with jQuery.unique - J Query
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You have two jQuery DOM collections that need to have duplicate elements removed:
Solution
Discussion
jQuery’s$.unique() function will remove duplicate DOM elements from an array or collection. In the previous recipe, we combine the animals and horses arrays using $.merge(). jQuery makes use of $.unique() throughout most of its core and internal functions such as .find() and .add(). Thus, the most common use case for this method is when operating on an array of elements not constructed with jQuery.
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J Query Tutorial
- Including The Jquery Library Code In An Html Page Problem
- Executing Jquery/javascript Coded After The Dom Has Loaded But Before Complete Page Load
- Selecting Dom Elements Using Selectors And The Jquery Function
- Selecting Dom Elements Within A Specified Context
- Filtering A Wrapper Set Of Dom Elements
- Finding Descendant Elements Within The Currently Selected Wrapper Set
- Returning To The Prior Selection Before A Destructive Change
- Including The Previous Selection With The Current Selection
- Traversing The Dom Based On Your Current Context To Acquire A New Set Of Dom Elements
- Creating, Operating On, And Inserting Dom Elements
- Removing Dom Elements
- Replacing Dom Elements
- Cloning Dom Elements
- Getting, Setting, And Removing Dom Element Attributes
- Getting And Setting Html Content
- Getting And Setting Text Content
- Using The $ Alias Without Creating Global Conflicts
- Selecting Child Elements Only
- Selecting Specific Siblings
- Selecting Elements By Index Order
- Selecting Elements That Are Currently Animating
- Selecting Elements Based On What They Contain
- Selecting Elements By What They Don’t Match
- Selecting Elements Based On Their Visibility
- Selecting Elements Based On Attributes
- Selecting Form Elements By Type
- Selecting An Element With Specific Characteristics
- Using The Context Parameter
- Creating A Custom Filter Selector
- Looping Through A Set Of Selected Results
- Reducing The Selection Set To A Specified Item
- Convert A Selected Jquery Object Into A Raw Dom Object
- Getting The Index Of An Item In A Selection
- Making A Unique Array Of Values From An Existing Array
- Performing An Action On A Subset Of The Selected Set
- Configuring Jquery Not To Conflict With Other Libraries
- Adding Functionality With Plugins
- Determining The Exact Query That Was Used
- Detecting Features With Jquery.support
- Iterating Over Arrays And Objects With Jquery.each
- Filtering Arrays With Jquery.grep
- Iterating And Modifying Array Entries With Jquery.map
- Combining Two Arrays With Jquery.merge
- Filtering Out Duplicate Array Entries with jQuery.unique
- Testing Callback Functions With Jquery.isfunction
- Removing Whitespace From Strings Or Form Values With Jquery.trim
- Attaching Objects And Data To Dom With Jquery.data
- Extending Objects With Jquery.extend
- That’s Not Jquery, It’s Javascript!
- What’s Wrong With $(this)?
- Removing Redundant Repetition
- Formatting Your Jquery Chains
- Borrowing Code From Other Libraries
- Writing A Custom Iterator
- Toggling An Attribute
- Finding The Bottlenecks
- Caching Your Jquery Objects
- Writing Faster Selectors
- Loading Tables Faster
- Coding Bare-metal Loops
- Reducing Name Lookups
- Updating The Dom Faster With .innerhtml
- Debugging? Break Those Chains
- Is It A Jquery Bug?
- Tracing Into Jquery
- Making Fewer Server Requests
- Writing Unobtrusive Javascript
- Using Jquery For Progressive Enhancement
- Making Your Pages Accessible
- Finding The Dimensions Of The Window And Document
- Finding The Dimensions Of An Element
- Finding The Offset Of An Element
- Scrolling An Element Into View
- Determining Whether An Element Is Within The Viewport
- Centering An Element Within The Viewport
- Absolutely Positioning An Element At Its Current Position
- Positioning An Element Relative To Another Element
- Switching Stylesheets Based On Browser Width
- Sliding And Fading Elements In And Out Of View
- Making Elements Visible By Sliding Them Up
- Creating A Horizontal Accordion
- Simultaneously Sliding And Fading Elements
- Applying Sequential Effects
- Determining Whether Elements Are Currently Being Animated
- Stopping And Resetting Animations
- Using Custom Easing Methods For Effects
- Disabling All Effects
- Using Jquery Ui For Advanced Effects
- Attaching A Handler To Many Events
- Reusing A Handler Function With Different Data
- Removing A Whole Set Of Event Handlers
- Triggering Specific Event Handlers
- Passing Dynamic Data To Event Handlers
- Accessing An Element Asap (before Document.ready)
- Stopping The Handler Execution Loop
- Getting The Correct Element When Using Event.target
- Avoid Multiple Hover() Animations In Parallel
- Making Event Handlers Work For Newly Added Elements
- Getting Jquery To Work When Loaded Dynamically
- Speeding Up Global Event Triggering
- Creating Your Own Events
- Letting Event Handlers Provide Needed Data
- Creating Event-driven Plugins
- Getting Notified When Jquery Methods Are Called
- Using Objects’ Methods As Event Listeners
- Focusing A Text Input On Page Load
- Disabling And Enabling Form Elements
- Selecting Radio Buttons Automatically
- (de)selecting All Checkboxes Using Dedicated Links
- (de)selecting All Checkboxes Using A Single Toggle
- Adding And Removing Select Options
- Autotabbing Based On Character Count
- Displaying Remaining Character Count
- Constraining Text Input To Specific Characters
- Submitting A Form Using Ajax
- Validating Forms With Css
- Validating Forms In Jquery
- Creating Masked Input Fields
- Autocompleting Text Fields
- Selecting A Range Of Values
- Entering A Range-constrained Value
- Uploading Files In The Background
- Limiting The Length Of Text Inputs
- Displaying Labels Above Input Fields
- Growing An Input With Its Content
- Choosing A Date
- Where Do You Find Jquery Plugins?
- When Should You Write A Jquery Plugin?
- Writing Your First Jquery Plugin
- Passing Options Into Your Plugin
- Using The $ Shortcut In Your Plugin
- Including Private Functions In Your Plugin
- Supporting The Metadata Plugin
- Adding A Static Function To Your Plugin
- Unit Testing Your Plugin With Qunit
- Creating Custom Tool Tips
- Navigating With A File-tree Expander
- Expanding An Accordion
- Tabbing Through A Document
- Displaying A Simple Modal Window
- Building Drop-down Menus
- Cross-fading Rotating Images
- Sliding Panels
- Including The Entire Jquery Ui Suite
- Including An Individual Jquery Ui Plugin Or Two
- Initializing A Jquery Ui Plugin With Default Options
- Initializing A Jquery Ui Plugin With Custom Options
- Creating Your Very Own Jquery Ui Plugin Defaults
- Getting And Setting Jquery Ui Plugin Options
- Calling Jquery Ui Plugin Methods
- Handling Jquery Ui Plugin Events
- Destroying A Jquery Ui Plugin
- Creating A Jquery Ui Music Player
- Styling Jquery Ui Widgets With Themeroller
- Overriding Jquery Ui Layout And Theme Styles
- Applying A Theme To Non-jquery Ui Components
- Referencing Multiple Themes On A Single Page
- Jquery And Ajax
- Using Ajax On Your Whole Site
- Using Simple Ajax With User Feedback
- Using Ajax Shortcuts And Data Types
- Using Html Fragments And Jquery
- Converting Xml To Dom
- Creating Json
- Parsing Json
- Using Jquery And Jsonp
- Using Client-side Storage
- Saving Application State For A Single Session
- Saving Application State Between Sessions
- Using A Javascript Template Engine
- Queuing Ajax Requests
- Dealing With Ajax And The Back Button
- Putting Javascript At The End Of A Page
- Automating Unit Testing
- Asserting Results
- Testing Synchronous Callbacks
- Testing Asynchronous Callbacks
- Testing User Actions
- Keeping Tests Atomic
- Grouping Tests
- Selecting Tests To Run
Jquery Basics
Selecting Elements With Jquery
Beyond The Basics
Jquery Utilities
Faster, Simpler, More Fun
Dimensions
Effects
Events
Advanced Events
Html Form Enhancements From Scratch
Html Form Enhancements With Plugins
Jquery Plugins
Interface Components From Scratch
User Interfaces With Jquery Ui
Jquery Ui Theming
Jquery, Ajax, Data Formats: Html, Xml, Json, Jsonp
Using Jquery In Large Projects
Unit Testing
