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What are the R1 and L1 Buttons on Your Xbox Controller?4
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The Xbox wireless controller features analog sticks, shoulder buttons, triggers, and rumble motors that allow haptic feedback.
The premium version of controllers, on the other hand, like the Elite wireless controllers, include replaceable components and programmability features.
The R1 and L1 buttons on your Xbox controller allow you to perform
multiple actions based on the game type, and also move between sections on the user interface.
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If you are an avid gamer and you just got Microsoft’s own gaming console, it’s natural for you to ask, what are the R1 and L1 buttons on your Xbox controller?
The Xbox One controller layout contains four primary face buttons, two shoulder bumpers, two analog triggers, two analog sticks, and an automated D-pad.
Offering an immersive gaming experience, textured grip, and comfortable movements, the Xbox controller is undoubtedly among the best game controllers for Windows 11.
Having said that, in this post, we will talk about all the buttons of your Xbox controller, including R1 and l1.
What is R1 on my Xbox controller?To answer your question, which button is R1 on Xbox, it’s the right bumper that is located on the right side of the controller’s shoulder and helps you to execute an action or make a selection.
But, if you are wondering what is R2 on Xbox, then it’s the second bumper or the trigger (RT), located at the back right of the Xbox controller.
What is L1 on my Xbox controller?Many users ask, what are the L1 and L2 buttons on the Xbox controller?
The L1 button on your Xbox controller is the left bumper that’s located on the left side of the controller’s shoulder.
The L2 button is the left trigger (LT) located at the back left of the Xbox controller.
Nevertheless, there are different buttons on the Xbox One controller, and below are the Xbox one controller buttons explained.
How do you use the buttons on the Xbox One controller?You can visit the official Xbox page to get to know your Xbox One wireless controller.
In the meanwhile, here’s a quick overview of the Xbox controller buttons.
1Left stickA mini-joystick, that helps you navigate games, apps, and the Xbox console.2Left bumperIt’s an oblong-shaped button located on the top left of the controller. It is used to interact with games, apps, and the Xbox console. 3View buttonPlaced at the lower left of the Xbox button, its functioning depends on the app or game.4USB charge portLocated on the top edge of the controller above the Xbox button, it allows you to connect your wireless controller to the console using a mini-USB cable.5Xbox buttonIt’s a round-shaped button placed at the top front end of the controller. It supports multiple actions. 6Menu buttonPlaced on the lower right of the Xbox button, it allows you to access the game and app menu, etc. 7Right bumperIt’s an oblong-shaped button located on the top right of the controller. It is used to interact with games, apps, and the Xbox console. 8Directional padThis is a plus sign-shaped button that helps you navigate directions. 9Expansion portAn open port on the bottom-side edge of the controller, it’s used to connect different accessories.10Right stickA mini-joystick, that helps you to navigate games, apps, and the Xbox console.163.5mm portLocated next to the expansion port on the bottom side of the controller, it supports 3.5mm audio devices.A, B X, YA, B, X, and Y buttonsPositioned on the right side of the controller, these buttons allow you to interact with games, apps, and the console interface.
If you want a clear explanation of the buttons and their functions, do not hesitate to refer to the Xbox One controller manual PDF that’s shipped with the package.
However, if the Xbox controller is not recognized in Windows 11, then you can try the fixes in our guide.
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Best Xbox Controller Deals In April 2023
Best Xbox controller deals in April 2023
A look at all the very best Xbox controller deals right now
In search of the best Xbox controller deals right now? If that’s the case then you’re in luck. There are plenty of deals on Xbox controllers available. In this article we’ll take you through all the very best deals on Xbox controllers that the internet has to offer.
A new Xbox controller is a great way to upgrade your gaming setup. You might be looking for a second controller for some good old fashioned co-op or maybe your old controller has seen better days and its time for a new model to take its place.
Without further ado then, let’s take a look at some of the fantastic Xbox controller deals available right now.
Best Xbox Controller deals: today’s best deals
Here are the very best Xbox controller deals available right now. We’ll be updating this list regularly so be sure to check back in for updates.
US
Deals
US
UK
Deals
Editor’s pick
15% off
Xbox Elite Wireless Controller Series 2 Core – White
Best Deals
15% off @ Amazon
24% off
Best Deals
24% off @ Amazon
16% off
Xbox Elite Wireless Controller Series 2 – Black
Best Deals
16% off @ Amazon
For those of you based in the States, here are the latest and greatest Xbox controller deals:
editorpick
Editor’s pick
15% off
Xbox Elite Wireless Controller Series 2 Core – White
Best Deals
15% off @ Amazon
24% off
Best Deals
24% off @ Amazon
16% off
Xbox Elite Wireless Controller Series 2 – Black
Best Deals
16% off @ Amazon
If you’re a UK based gamer these are the deals for you:
11% off
Xbox Wireless Controller – Robot White
Best Deals
11% off @ Amazon
17% off
Best Deals
17% off @ Amazon
6% off
Xbox Elite Wireless Controller Series 2 – Core Edition
Best Deals
6% off @ Amazon
With savings to be made with multiple different retailers it can be difficult to know where the best place to look is. Luckily we’re here to take you through all the best retailers and ways of getting hold of that controller you need. Whether you’re after a second controller so you can play some old school co-op or your old controller has bitten the dust, we’ll fill you in on where to get your hands on a great new Xbox controller.
Whenever you’re buying something online shopping around is a good idea. Even if you think you’ve spied a great deal on one website, there may be an even better one just waiting to be snapped up on another. Thankfully for you we’ve already done some shopping around to scout out the very best deals, but that shouldn’t stop you from doing some of your own research if you’re really on the hunt for a bargain.
Of course there’s always the option of going into a store in person but we reckon that on the whole you’re much more likely to get a great deal online.
Xbox controller deals: retailer shortlist
If none of the deals we’ve gone through on this page quite take your fancy, then here we’ll go through some trusted retailers that you can usually rely on to find some great deals. Amazon is often the best place to start when looking for great tech deals. The size of their business means that they will almost always be offering promotions on what you’re looking for and if not something very similar.
Similarly Best Buy’s site is usually chock-a-block with fantastic deals and Xbox controllers are no exception to that rule.
Here are some of our favorite sites for all things Xbox controller:
Amazon – Amazon is always well populated with Xbox controller deals
Best Buy – Best buy is a favorite of our and also has some great deals on Xbox controllers
Newegg – Newegg regularly has some great deals on Xbox controllers
B&H – This is another great site where you can often snag a deal on an Xbox controller
Xbox Controller FAQs
How much do Xbox controllers cost?
That really depends on what you’re after. If you just need something that works for say browsing streaming sites or low level gaming, then you can get your hands on Xbox controllers for as little as somewhere in the region of $30. However if you want something that will really pack a punch on the battlefields of your favorite game then you might want to consider spending $150 and upwards, especially if you’re after special editions.
What is the best Xbox controller?
This is difficult to say as depending on your needs, different controllers might suit you better. That being said if you’re after great performance then we think that the Xbox Elite Wireless Controller Series 2 Core is a fantastic option.
How To Calibrate Xbox One Controller On Windows Pc? – 3 Easy Ways
Microsoft has done a fantastic job to ensure Xbox and Windows work together. Pairing controllers to your PC is often super easy, often a matter of plugging a USB cable or turning on the Bluetooth. However, sometimes, you may need to intervene for some manual changes.
Gamers know how important it is to maintain and care for their gear. Part of the job is making sure your controllers are in great condition. In particular, wrong settings can damage your aiming, precision, movement, and more.
Therefore, one of the most significant manual changes is calibrating Xbox One controllers. It fixes axis issues, drift movement, thumbstick sensitivity, and similar. In essence, recalibrating the controller will bring back the smooth feel of a factory condition controller.
Why Is My Xbox One Controller Not Calibrated?You will know you need to calibrate Xbox One controller when you’re having trouble playing. Wrong calibration settings produce random movement during your playtime.
In particular, the issue may rely on the Axis, which is your X-Y-Z movement and perspective.
A non-calibrated controller is a common issue on these occasions:
You’re using a new controller on your Windows PC
You’re using a very old controller on your Windows PC
You haven’t used the controller for a while on your PC
Steam, Epic Games, or Windows automatically changed your controller’s settings after an update
There’s physical damage like wear, tear, dust or rust in the controller.
For all causes, the steps are the same. Bear in mind that Xbox One calibration has nothing to do with your PC’s drivers or the controller’s firmware. Either way, keeping both up to date is best to avoid connectivity issues.
How to Calibrate Xbox One Controller?Windows 10 and Windows 11 PCs have a built-in program for the job, the Calibration Tool.
This works with any controller you plug via a USB cable, including any PlayStation, Xbox One, Xbox Series, Nintendo Switch, or any generic controller. So, our instructions can help you calibrate any controller you have.
There’re three ways to calibrate Xbox One controller on Windows 10:
Reset the settings to default
Calibrate the controller manually
Calibrate the controller via Steam
Before trying one of the three solutions, please make sure your Windows PC recognizes the controller.
How to Reset the Xbox One Controller Calibration?The first method is resetting the settings. It’s a good idea to test it before manually calibrating the peripheral, as it can be tough. Additionally, you can always engage the option if the manual calibration goes wrong.
If it’s not working properly, please continue to the next method. Alternatively, you could start with a manual calibrate instead of resetting to default.
How to Calibrate Xbox One Controller Manually?We’re going back to the same menu as before for a manual calibration:
Go to Control Panel
Select Devices and Printers
How to Calibrate Xbox One Controller on Steam?There’re various third-party software calibration features, but we recommend using Stream to calibrate the Xbox One controller. Bear in mind that the Epic Games launcher doesn’t have calibration options.
So, we’re recommending Valve’s storefront, as most PC games already have a Steam account and use the app to buy and play games.
Moreover, Steam allows you to fine-tune the controller on a game-by-game basis, even if these games don’t support USB controllers. It’s a great all-around tool to use.
Here’re the steps:
What Is Esg Investing And What Are The Best Esg Funds?
While many factors make an ESG fund worth investing in, these are the ten that investors seem to flock to the most.
iShares ESG MSCI EAFE ETF (ESGD)
With nearly $6.5 billion in assets from over 400 companies, iShares ESG MSCI EAFE ETF [1] (ESGD) comprises many large and mid-sized stocks in Europe, Australia, Asia, and the Far East. This fund is ideal for those hoping to build a sustainable equity portfolio that will bring in great returns over the long run.
Vanguard FTSE Social Index Fund (VFTAX)
What sets Vanguard FTSE Social Index Fund [2] apart is its commitment to exclude all companies in the alcohol, tobacco, weapons, fossil fuels, nuclear power, gambling, and adult entertainment industries. Instead, the fund invests in companies such as Apple, Microsoft, Google, Amazon, and countless other large companies that pass the strict ESG criteria.
iShares Global Clean Energy ETF (ICLN)
This iShares fund has far fewer companies under its umbrella — just over 80, for the time being — but the total assets still come close to that of iShares ESG MSCI EAFE ETF. As a matter of fact, iShares Global Clean Energy ETF [3] currently holds nearly $6 billion in net assets. The fund focuses exclusively on clean energy stocks from all over the world.
Shelton Green Alpha Fund (NEXTX)
As one might tell from the name, Shelton Green Alpha Fund [4] focuses primarily on the green economy: companies that help make the Earth greener while also demonstrating above-average potential for future growth. Any company that prioritizes products and services that better the environment is especially attractive to this ESG fund.
iShares ESG Aware MSCI USA ETF (ESGU)
This iShares fund has that same focus on large- and mid-cap stocks that demonstrate those all-important environmental, social, and governance (ESG) practices that other iShares funds have. Still, the iShares ESG Aware MSCI USA ETF [5] is unique for the way it hones explicitly in on U.S. companies only. With nearly 350 holdings and over $21 billion in net assets, this strategy seems to work quite well for the fund.
Parnassus Core Equity Investor (PRBLX)
A primary goal of the Parnassus Core Equity Investor ESG [6] is to maintain its high quality through both market highs and market lows. This means investing in U.S. companies that pass the ESG test and perform incredibly well during market downturns. With this unique strategy, it ultimately hopes to outperform the S&P 500 Index.
iShares MSCI USA ESG Select ETF (SUSA)
Of course, while the intentions with ESG funds are always good, certain companies are inevitably going to become embroiled in controversy from time to time. In an attempt to avoid this, iShares MSCI USA ESG Select ETF [7] turns its attention to companies that stay away from low ESG ratings and have averted any severe controversies in their histories. Their net assets are lower than other iShares ESG funds on this list, but it’s worth it when considering the fund’s commitment to the ESG mission.
Parnassus Mid Cap Fund Investor (PARMX)
The Parnassus Mid Cap Fund Investor [8] aims to avoid companies that would perform poorly during market downturns while still staying committed to companies with high ESG ratings. This fund invests solely in high-quality companies with a small range of expected investment outcomes hoping to protect capital during downturns. Ultimately, the end goal is to outperform the Russell Midcap Index.
iShares ESG Aware MSCI EM ETF (ESGE)
As with the Parnassus funds, it helps for an ESG fund to have a specific index in mind when establishing particular financial goals. In the case of iShares ESG Aware MSCI EM ETF [9], that index they hope to mirror is the MSCI Emerging Markets Index. To do this, the iShares ESG Aware MSCI EM ETF invests in large- and mid-cap stocks that are just beginning to show great potential, such as Alibaba and Tencent.
SPDR S&P 500 Fossil Fuel Reserves Free ETF (SPYX)
The SPDR S&P 500 Fossil Fuel Reserves Free ETF [10] is a more ESG-friendly alternative to the S&P 500 Fossil Fuel Free Index, allowing investors in the fund to have the peace of mind that they are not investing in any fossil fuels or other non-ESG compliant companies.
What Are The Best Comedies On Peacock To Stream Today?
Peacock
NBCUniversal’s streaming service Peacock has been quickly expanding, including sports, major movie releases, and now even Hallmark Channel content. The service is also home to a huge array of comedy titles. That includes Peacock original shows as well as streaming movies. So, what are the best comedies on Peacock?
Below, we break down some of the best comedy titles you’ll find across both film and TV.
If you’re not already a member, you can sign up for Peacock by hitting the link below:
Peacock
NBCUniversal’s Peacock streaming service offers a lot of great movies and TV shows to stream on demand, along with live news and sports. Best of all, you can watch lots of its content for free, or watch all of it with a paid subscription starting at just $4.99 a month.
See price at Peacock
The best comedies on Peacock
Comedy TV
Comedy Movies
The best TV comedies on Peacock
Poker Face (2023-ongoing)
Peacock
What you need to know:
Rating: TV-MA
Runtime: 47-67 minutes per episode
Creator: Rian Johnson
Main cast: Natasha Lyonne
Genre: Mystery/comedy/drama
Ratings: 8 – IMDB / 99% – Rotten Tomatoes
Superstore (2023-2023)
NBC
What you need to know:
Rating: TV-14
Runtime: 22 minutes per episode
Creator: Justin Spitzer
Main cast: America Ferrera, Ben Feldman, Lauren Ash, Colton Dunn, Nico Santos, Nichole Sakura, Mark McKinney, Kaliko Kauahi
Genre: Workplace comedy/sitcom
Ratings: 7.8 – IMDB / 93% – Rotten Tomatoes
The Office (2005-2013)
NBC
What you need to know:
Rating: TV-14
Runtime: 22 minutes per episode
Creator: Greg Daniels
Main cast: Steve Carell, Rainn Wilson, John Krasinski, Jenna Fischer, B.J. Novak, Ed Helms, Amy Ryan, Mindy Kaling
Genre: Mockumentary/sitcom
Ratings: 9 – IMDB / 81% – Rotten Tomatoes
Girls5eva (2023-ongoing)
NBCUniversal
What you need to know:
Rating: TV-MA
Runtime: minutes per episode
Creator: Meredith Scardino
Main cast: Sara Bareilles, Busy Philipps, Paula Pell, Renée Elise Goldsberry
Genre: Musical/comedy
Ratings: 7.2 – IMDB / 96% – Rotten Tomatoes
We Are Lady Parts (2023-ongoing)
NBCUniversal
What you need to know:
Rating: TV-MA
Runtime: 24 minutes per episode
Creator: Nida Manzoor
Main cast: Anjana Vasan, Sarah Kameela, Juliette Motamed, Faith Omole, Lucie Shorthouse
Genre: Sitcom/musical
Ratings: 8.2 – IMDB / 100% – Rotten Tomatoes
Brooklyn Nine-Nine (2013-2023)
NBC
What you need to know:
Rating: TV-14
Runtime: 22 minutes per episode
Creator: Dan Goor, Michael Schur
Main cast: Andy Samberg, Stephanie Beatriz, Terry Crews, Melissa Fumero, Joe Lo Truglio, Andre Braugher
Genre: Sitcom/police procedural/workplace comedy
Ratings: 8.4 – IMDB / 95% – Rotten Tomatoes
Saturday Night Live (1975-ongoing)
NBC
What you need to know:
Rating: TV-14
Runtime: 93 minutes per episode
Creator: Lorne Michaels
Main cast: Kenan Thompson, Aidy Bryant, Cecily Strong, Colin Jost, Michael Che, Ego Nwodim, Bowen Yang
Genre: Sketch comedy
Ratings: 8 – IMDB / NA – Rotten Tomatoes
The Kids in the Hall (1988-1995)
CBC
What you need to know:
Rating: TV-14
Runtime: 25 minutes per episode
Creator: Lorne Michaels
Main cast: Dave Foley, Bruce McCulloch, Kevin McDonald, Mark McKinney
Genre: Sketch comedy
Ratings: 8.4 – IMDB / 100% – Rotten Tomatoes
Mohawk Girls (2014-2023)
CBC
What you need to know:
Rating: TV-14
Runtime: 22 minutes per episode
Creator: Tracey Deer
Main cast: Jennifer Pudavick, Heather White, Maika Harper, Allyson Pratt
Genre: Comedy/drama
Ratings: 6.3 – IMDB / NA – Rotten Tomatoes
Frasier (1993-2004)
NBC
What you need to know:
Rating: TV-PG
Runtime: 22 minutes per episode
Creator: David Angell, Peter Casey, David Lee
Main cast: Kelsey Grammer, Jane Leeves, David Hyde Pierce, Peri Gilpin, John Mahoney
Genre: Sitcom
Ratings: 8.2 – IMDB / 95% – Rotten Tomatoes
MacGruber (2023-ongoing)
Peacock
What you need to know:
Rating: TV-MA
Runtime: 30 minutes per episode
Creator: Will Forte, Jorma Taccone, John Solomon
Main cast: Will Forte, Kristen Wiig, Ryan Phillippe, Sam Elliott, Laurence Fishburne, Billy Zane
Genre: Action/comedy
Ratings: 7.2 – IMDB / 85% – Rotten Tomatoes
That 70s Show (1998-2006)
Fox
What you need to know:
Rating: TV-14
Runtime: 22 minutes per episode
Creator: Bonnie Turner, Terry Turner, Mark Brazill
Main cast: Topher Grace, Mila Kunis, Ashton Kutcher, Danny Masterson, Laura Prepon, Wilmer Valderrama, Debra Jo Rupp, Kurtwood Smith
Genre: Sitcom
Ratings: 8.1 – IMDB / NA – Rotten Tomatoes
Weeds (2005-2012)
Showtime
What you need to know:
Rating: TV-MA
Runtime: 28 minutes per episode
Creator: Jenji Kohan
Main cast: Mary-Louise Parker, Elizabeth Perkins, Justin Kirk
Genre: Crime/drama/comedy
Ratings: 7.9 – IMDB / 70% – Rotten Tomatoes
Sanford and Son (1972-1977)
NBC
What you need to know:
Rating: TV-PG
Runtime: 22-24 minutes per episode
Creator: Bud Yorkin, Norman Lear
Main cast: Redd Foxx, Demond Wilson
Genre: Sitcom
Ratings: 7.9 – IMDB / NA – Rotten Tomatoes
The best movie comedies on Peacock
Forgetting Sarah Marshall (2008)
Universal Pictures
What you need to know:
Rating: R
Runtime: 111 minutes
Director: Nicholas Stoller
Main cast: Jason Segel, Kristen Bell, Mila Kunis, Russell Brand
Genre: Comedy
Ratings: 7.1 – IMDB / 83% – Rotten Tomatoes
Clockwatchers (1997)
BMG Independents
What you need to know:
Rating: PG-13
Runtime: 96 minutes
Director: Jill Sprecher
Main cast: Toni Collette, Parker Posey, Lisa Kudrow, Alanna Ubach
Genre: Comedy/indie
Ratings: 6.6 – IMDB / 85% – Rotten Tomatoes
The Big Lebowski (1998)
Universal Pictures
What you need to know:
Rating: R
Runtime: 117 minutes
Director: Ethan Coen, Joel Coen
Main cast: Jeff Bridges, John Goodman, Julianne Moore, Steve Buscemi
Genre: Mystery/neo-noir/comedy
Ratings: 8.1 – IMDB / 79% – Rotten Tomatoes
Afternoon Delight (2013)
The Film Arcade
What you need to know:
Rating: R
Runtime: 108 minutes
Director: Joey Soloway
Main cast: Kathryn Hahn, Juno Temple, Josh Radnor, Jane Lynch
Genre: Drama/comedy
Ratings: 5.7 – IMDB / 66% – Rotten Tomatoes
Bernie (2012)
Millenium Films
What you need to know:
Rating: PG-13
Runtime: 104 minutes
Director: Richard Linklater
Main cast: Jack Black, Shirley MacLaine, Matthew McConaughey
Genre: Crime/drama/comedy
Ratings: 6.8 – IMDB / 88% – Rotten Tomatoes
Death Becomes Her (1992)
Universal Pictures
What you need to know:
Rating: PG-13
Runtime: 104 minutes
Director: Robert Zemeckis
Main cast: Meryl Streep, Goldie Hawn, Bruce Willis, Isabella Rossellini
Genre: Comedy/fantasy
Ratings: 6.6 – IMDB / 55% – Rotten Tomatoes
American Pie (1999)
Universal Pictures
What you need to know:
Rating: R
Runtime: 95 minutes
Director: Paul Weitz
Main cast: Jason Biggs, Chris Klein, Eugene Levy, Natasha Lyonne, Thomas Ian Nicholas, Seann William Scott, Tara Reid, Mena Suvari, Eddie Kaye Thomas
Genre: Comedy/teen
Ratings: 7 – IMDB / 61% – Rotten Tomatoes
Ready to watch? You can find the show right here on Peacock.
Hot Fuzz (2007)
Rogue Pictures
What you need to know:
Rating: R
Runtime: 121 minutes
Director: Edgar Wright
Main cast: Simon Pegg, Nick Frost, Jim Broadbent, Timothy Dalton
Genre: Crime/comedy
Ratings: 7.8 – IMDB / 91% – Rotten Tomatoes
Meet Cute (2023)
Peacock
What you need to know:
Rating: TV-MA
Runtime: 89 minutes
Director: Alexandre Lehmann
Main cast: Kaley Cuoco, Pete Davidson
Genre: Romantic comedy/sci-fi
Ratings: 5.7 – IMDB / 58% – Rotten Tomatoes
World’s Greatest Dad (2009)
Magnolia Pictures
What you need to know:
Rating: R
Runtime: 99 minutes
Director: Bobcat Goldthwait
Main cast: Robin Williams, Daryl Sabara, Alexie Gilmore
Genre: Drama/comedy
Ratings: 6.9 – IMDB / 88% – Rotten Tomatoes
Drinking Buddies (2013)
Magnolia Pictures
What you need to know:
Rating: R
Runtime: 95 minutes
Director: Joe Swanberg
Main cast: Olivia Wilde, Jake Johnson, Anna Kendrick, Ron Livingston
Genre: Comedy/drama/romance
Ratings: 6.1 – IMDB / 84% – Rotten Tomatoes
Peacock
NBCUniversal’s Peacock streaming service offers a lot of great movies and TV shows to stream on demand, along with live news and sports. Best of all, you can watch lots of its content for free, or watch all of it with a paid subscription starting at just $4.99 a month.
See price at Peacock
What Are The Adapter And Memento Patterns In Swift?
Using the adapter pattern, you can design a system that allows two different interfaces to work together or communicate between them. You can implement this design pattern with the class or structure by conforming to a certain protocol. Then, you can use an instance of that class or struct to interact with an object that conforms to a different protocol.
Using the memento pattern, you can design a system that allows an object to be restored to a previous state. You can implement this design pattern with the class or structure that can store the states of an object. To manage the stores, you need to create methods for storing and restoring the states.
Both of these design patterns are used to make your code more flexible and reusable by decoupling objects from one another.
Adapter PatternWhen there is an existing class or structure that offers specific functionality, the adapter pattern is employed. You must utilize it in a manner that is incompatible with its current interface, though. The existing class or struct and the new interface can coexist in harmony thanks to the adapter class or struct, which serves as a bridge between them.
Think about the case where you already have a class that offers a list of items. The class, however, is not intended for usage with a table view in iOS. You can develop an adapter class that complies with the UITableViewDataSource protocol to utilize the class with a table view. To supply data for the table view, this adapter class depends on the existing class.
ExampleHere is an example of the Adapter pattern in Swift
protocol LegacyData { } class LegacyDataProvider: LegacyData { return ["item1", "item2", "item3"] } } protocol NewData { } class NewDataAdapter: NewData { private let legacyData: LegacyData init(legacyData: LegacyData) { self.legacyData = legacyData } return legacyData.getData() } } let legacyDataProvider = LegacyDataProvider() let newDataAdapter = NewDataAdapter(legacyData: legacyDataProvider) print(newDataAdapter.getData()) Output ["item1", "item2", "item3"]Here, LegacyDataProvider is an existing class that provides data in a certain format, but it is not compatible with the new interface that is defined by the NewData protocol. The NewDataAdapter class acts as a bridge between the two, allowing LegacyDataProvider to be used with the new interface.
It allows the integration of incompatible classes
It allows for the separation of interface and implementation
It allows the reuse of existing classes
It allows for the easy addition of new classes
Memento PatternWhen an object’s state needs to be saved so that it can be restored later, the Memento pattern is employed. The object’s state is stored in the Memento class or struct, and it provides methods for generating, restoring, and accessing the memento.
For example, consider a scenario where you are building a drawing application and you want to allow users to undo and redo their actions. You can use the Memento pattern to store the state of the drawing canvas at each step so that the user can easily undo and redo their actions.
ExampleHere is an example of the Memento pattern in Swift
class DrawingCanvas { private var shapes: [Shape] = [] func addShape(_ shape: Shape) { shapes.append(shape) } return Memento.undo(from: &shapes) } return Memento.redo(from: &shapes) } func save() { Memento.save(from: shapes) } private struct Memento { private static var undoStack: [[Shape]] = [] private static var redoStack: [[Shape]] = [] guard !undoStack.isEmpty else { return [] } let currentState = undoStack.removeLast() redoStack.append(shapes) return currentState } guard !redoStack.isEmpty else { return [] } let currentState = redoStack.removeLast() undoStack.append(shapes) return currentState } static func save(from shapes: [Shape]) { undoStack.append(shapes) redoStack.removeAll() } } struct Shape { } }Here, the DrawingCanvas class has a private memento property which is an instance of the Memento struct. This property is responsible for saving the state of the DrawingCanvas class at each step. The DrawingCanvas has undo and redo methods that use the undo and redo methods of the memento to restore the state of the canvas.
It allows the undoing and redoing of actions
It allows the easy saving and restoring of the state of an object
It allows the decoupling of the object and its state
It allows the separation of concerns
ConclusionTwo design patterns that can help developers in resolving typical issues with software development are the Adapter and Memento patterns. While the Memento pattern enables an item to save and restore its former state, the Adapter pattern enables objects with incompatible interfaces to cooperate. Both patterns encourage loose coupling and the separation of concerns, and they can help you create code that is more effectively designed. It’s crucial to know when to apply these patterns and how to do so correctly in your codebase.
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