DEV Community

JavaScript Promises Explained By Gambling At A Casino

Kevin Kononenko on September 11, 2018

If you have ever gambled or watched a movie about gambling, then you can understand promises in JavaScript. We all love the asynchronous capabilit...

Read full post

Angel Daniel Munoz Gonzalez • Sep 12 '18 • Edited

Thank you for not using new Promise(); Multiple times, just once and then (badum tss) just chaining .then() that's how promises should be used.

I've seen so many tutorials around using/abusing new Promise(); when .then() already returns promises.

Edit:
I think I was not clear, bright explanation I really liked the reading and your example! keep writing more stuff!

Kevin Kononenko • Sep 12 '18

Haha I appreciate it Angel! Definitely clear.

Tiodetac • May 9 '20

I don’t think that there are the best online casinos that can be named like that. Gambling is pretty subjective so it mostly depends on what you like to play online. For example, if you ask 100 people who play online casino games, 55 of them will tell you that the nettcasinorsk.com/mrgreen/ with the most slots is the best one, while 30 will say a casino with the best live casino games is the best. The remaining 15 will likely say that as long as there’s a bonus they’re more than happy to dedicate time.

Andrew Smith • Oct 8 '20 • Edited

Maybe your casino is good and pretty interesting but in my opinion it doesn't fit this forum. First of all your casino has some significant disadvantages, it looks like a blog, which makes it unattractive, it is on another language, so how could people understand how to play, and the games are totally different for our market. If you want to make a good product, you can have mega88a.com/id-ID/Home as the best example for our market. It is my favourite platform, because it fits my preferences and it offers me a lot of bonuses.

okegaming • Dec 21 '20 • Edited

Maybe your casino is good and pretty interesting but in my opinion it doesn't fit this forum. First of all your casino has some significant disadvantages, it looks like a blog
okegaming

DTorres • Feb 9 '21

My favorite is Incan Adventure Slot jackmobilecasinos.com/mobile-slot/... Incan Adventure is a good and exciting break from the regular video and fruit slot machines. It comes with a plan, which makes it all the way more challenging. I got to this site several months ago, when was messing around. Guys gathered a dope selection of various casino slots overviews. You can check the list of popular casinos where is better to play in real-money mode, check information about game features, some bonuses and useful hints for cool gaming!

Bett • Jul 22 '21

looks not bad, but it's a more like a blog I think

Arit Developer • Apr 28 '19

This was an awesomely REFRESHING walkthrough! Now you've got me excited about Promises! Thank you so much for taking the time and effort to produce this intelligent, visually-appealing post! I shall take a page from your book as I start writing my own tutorials :D

Kevin Kononenko • Apr 28 '19

Thanks Arit :)

grason777 • Jul 22 '19

I use the best application for online casinos jackmobilecasinos.com/mobile-free-.... I tried many different companies, but I chose this one. I noticed that I often go with the phone, because they have a good mobile application and it is very convenient to receive the money won. They even have free spins. And as soon as I started using the services of this application, I started to win more. That's a coincidence?)

TomWhite1122 • Dec 1 '20

Good one! I'm running online casino sites.google.com/ so it was quite helpful for me.
How many years are you coding? Because I would never write a code like this by myself. Anyway thanks for the code and good explanation!

Rafael E. • Sep 12 '18

at some point you stopped using slotResults and started using ticketValue but kept validating slotResults.

Kevin Kononenko • Sep 13 '18

Hey Rafael, can you point to a specific code block? I will check it out.

Rafael E. • Sep 13 '18

Sure!

All the code blocks after the paragraph named "Using Objects Within Promises"

withdraw.then(function(amount){
  let ticketValue = playSlots(amount, 100);

  if(slotResults <= 0) <---- HERE 
    throw err;

  return {tickets: ticketValue, cash: amount};
});

perhaps it should be something like

if((ticketValue + amount) <= 0)
    throw err;

or validate them separately in case you could use just tickets even if amount is <= 0.

Kevin Kononenko • Sep 14 '18

Good point! Just fixed two cases.

okegaming • Dec 21 '20

Maybe your casino is good and pretty interesting but in my opinion it doesn't fit this forum. First of all your casino has some significant disadvantages, it looks like a blog
okegaming

Officerider • Apr 14 '20

Hello guys! I would like to add one more service I like the most. This is online casino not in uk I find this source very useful and it has never let me down. Hence I trust it

Comment deleted

Jenny Casino • Sep 25 '21

Despite the fact that new online casinos are launched several times a month, ultimately only a small fraction of the huge number of playgrounds deserve the attention of gamers. For a long time, gambling operators can work hard to create one or another gambling club, which aims to enter the TOP 10 online casino, and most importantly, become a favorite of the audience. But not everyone succeeds in this, because today there is great competition in the online gambling market and each operator is trying with all his might to show its viability. But as we all know, demand creates offers, especially for high-quality online casinos jennycasino.com/top-rated-online-c... , and this forces operators to develop the latest projects of ultra-modern gambling houses and offer customers favorable terms of cooperation.

Denzy • Sep 10 '22

Lantern Crack is designed to get the best internet access and change the IP address. Those websites that are blocked by Google or any other browser, can bypass the resistance of the unavailability of the websites.

Denzy • Sep 10 '22

the VPN server based on their preferences in addition to restrictions. What can be more? all data you transmit, including document messages, notes as well as Web proxy extensions, are sent via encrypted systems. With all your security information at one glance, you can increase your privacy, and provide additional security options for browsing. In short, the NordVPN Torrent file has been all about safety using the top-standard encryption algorithms. Download Avast Premier License Key File for a lifetime.

Denzy • Sep 10 '22

It is also compatible with Multi-Stream. This means that you can watch films, songs, or television series without having to download them multiple times. So, FlixGrabis a top time-saving application that is at hand to assist users. You don’t need to be concerned about video quality or audio quality in this program The reason for this is because it will inspire you to make movies that are in HD quality. Here is where you can download the most current version PicsArt Studio. Photo Studio. This application can be used in HD 720P or 1080P formats.

worldforcrack • Jan 25 '22

If you have ever gambled or watched a movie about gambling, then you can understand promises in JavaScript.

We all love the asynchronous capabilities of JavaScript. In fact, we love them so much that sometimes, we overindulge. i am also watching for some javascripts for my blog worldforcrack.com/

David Collins • Nov 8 '19

Players across the globe can rest assured that the online gambling casinos featured on our site have rated extremely high for safety. As an example, online slots in canada - view now is my favourite place. Dip into your virtual wallet and discover the best options your favourite game has to offer in online gambling for real money.

HamishBock554 • Jul 9 '21

I usually use mindepcasinos.com/nz/1-deposit-cas... to find the most comfort and trustable place to play.

Geraldine Jenkins • Jul 8 '21

Great explanation, thanks for sharing this post, I'm just learning Java Script and would like to understand how online casinos work in terms of backend. I found a list of the best Online Pokies in New Zealand casinotop.co.nz/online-pokies-nz/ in order to understand which of them are the best, I think it will be easier for me to understand the example of the best casinos, since experts in development have worked on them.

John • Apr 17 '22

well explained, really good food for thought! What about JavaScript logic behind crypto casinos? Any difference there? I'm running bitcoin casino review site kasinotbitcoin.com and always wonder how it works.

Denzy • Aug 28 '22

AutoCAD 2023 allows users to explore and create ideas unlike ever before. This is all you require to draw, visualize documents, communicate and share your thoughts. From conceptual design to drawing and detail. Import a range of formats, including SolidWorks Pro/ENGINEER CATIA, Rhino, and NX. Drawing views, edge display, and location are updated instantly whenever an engineering change occurs. AutoCAD [Liftime Licence] comes with new features designed for your work style and automated to improve your productivity.

Nadem1324 • Aug 29 '22

_Autodesk AutoCAD 2023 Crack _is available for download as IDM full version. It is a powerful desktop application capable of creating 3D and 2D drawings. is the perfect software for engineers, architects, and other professionals. The process requires a lot of training but has powerful and sophisticated features.

Norma • Aug 31 '22

The Waves 14 VST With 64-bit support, speedier scanning, faster loading, and more efficient processing, Waves Version 9 opens up new ways to enhance an enhanced performance from high-performance plug-ins. But from the most important components like Reverberation, compression, equalization, and noise reduction to the modeled analog material post-production and surround tools, Artist signature collection, additional, Waves software offers the top plugins, including the Waves GRAMMY award winners.

Sofiia Shevchuk • Jan 16 '23

Useful guide, thanks! If someone needs help in developing a casino website, I advise this blog by Cleveroad. Casino web development goes through several stages like setting down license matters, building an MVP of the product, and choosing must-have features. That's why they've decided to discuss all possible challenges and ways to avoid them.

TonyCremonesi • Jun 15 '22

When I read such articles, I always reconfirm my thought that coding is fun. Great explanation! Enjoyed it as much as I enjoy developing my blog. It has come a long way to becoming a huge website with tons of games to play! IDealeCasinos now features numerous exclusive online gambling platforms with detailed reviews. Tons of work has been put into this. It is really something!

Nielheijnsbergen • Apr 30 '22 • Edited

Echt mooi uitgelegd! Gokreferentie maakte het 100% begrijpelijker. Dat soort informatieve artikelen trekken echt mijn aandacht. Vorige week kwam ik hier een gokken artikel over kansspelbelasting 2022 tegen en ik heb er echt van genoten. Aanrader als je een casinoliefhebber bent!

Kristien van Wessel • Apr 26 '22

Bedankt voor het delen van dit bericht! Goed uitgelegd, echt goed om over na te denken! Vraagt u zich af over JavaScript-logica achter crypto-casino's, huh. Ik probeer zelf de antwoorden te vinden tijdens het ontwikkelen van mijn weblog op IDealeCasinos.nl. Als je meer wilt weten over gokken, neem dan zeker eens een kijkje. Aanbevolen voor alle casinoliefhebbers!

ugne • Jan 13

great content custom printed boxes

ugne • Jan 13

This is an excellent article custom packaging boxes

Joshua Tyler • Jan 2 • Edited

온라인 카지노에서 운을 시험해보기로 무료 포커 게임 결정한 것이 기쁩니다. 나는 엄청난 금액을 얻었고 그것은 놀랍습니다. 게임은 훌륭했고 지불금은 정말 좋았습니다. 고객 서비스는 환상적이었고 모든 질문에 빠르게 답변했습니다. 이 온라인 카지노를 추천 할 것입니다!