Slots allow you to embed arbitrary content in a Vue component. Slots are the Vue equivalent to transclusion in Angular and child props in React. For example, suppose you wanted a component called green that added a green background behind child content.
This can improve the responsiveness of your web application because you can render the pages once and display them dynamically based on the current context of the application. In order to make this work, you need a way to distinguish the different views or pages from eachother. In SPAs this is done with a router. Luckily Vue has a fully supported first-party router library called vue-router.
- Vue Slots Tutorial Vue has support for slots built in and it is based on the shadow dom. It is a specification that is still in development but worth taking a look at to learn more about how they work, should this development approach become more common.
- About the course In this course, you'll learn how to use slots and scoped slots to create flexible and reusable Vue.js components. Slots allow us to pass components and HTML to components, giving us greater control of the appearance than what we get with props. Slots do not replace props.
In this tutorial we'll setup a simple SPA that will show some information about popular cryptocurrencies. We'll call it 'Crypto Info'. It will have a few pages and link those pages using vue-router. You should already be familiar with Vue as well as creating and using Vue components. Having experience with
.vue files is helpful but not required.
Table of Contents
To get started, let's use the handy Vue command line installer. Open a terminal and run the following.
When prompted, answer the questions displayed on the screen like so. Make sure to answer 'yes' for installing vue-router.
Once the app is setup, install all the dependencies and start up a dev server. Craps field numbers definition.
You should now be able to point a browser at http://localhost:8080 and see something like this.
The great thing about the Vue command line tool is that it will wire up vue-router for us. To get a better understanding of how it works, we can take a look the boilerplate that was created. Open
The first two lines are importing vue and vue-router. The third line is importing a component called Hello. We will discuss why in a bit. The
@ is just a nice alias for the
/src directory that was setup in webpack by the Vue command line tool.
Next we tell Vue to use the vue-router plugin. Finally the router is configured with a single route. The router uses Vue components as pages. In the above example we want to render the Hello component whenever a user navigates to the
The first line is importing Vue again. The second line is bringing in a component called
App. This will serve as the root component for the application. The third line is importing the router setup we looked at earlier. The next line tells Vue whether or not to show tips and warnings in the developer console of your browser. In this case it is set to false.
Finally a new Vue instance is created and mounted to the
#app div in our html and then it instantiated the
App component. We also inject the router configuration from earlier.
This, like I mentioned before, is the root component. It will serve as the point from which our page components will be rendered. Note that all the components we will use are in
<template> tag we just have some simple markup. The important piece though is the
<router-view> tag. The router uses this tag as a container for rendering the different components tied to the different routes. Just think of it as a placeholder.
<script> tag just contains a simple Vue component object that does nothing. The
<style> tag just contains some nice styling boilerplate provided by the Vue command line tool.
This is very similar to the
App component. Again, within the
<template> tag there is the HTML markup for the component. In this case it's all the links and text shown when we pointed our browser to http://localhost:8080. This is because in our router config, we specified that
/ or the root path of our application should point to
Now let's get rid of the default content and create a simpler home page. Edit
Hello.vue to look like the following:
If you reload, you should now see a page like this.
Creating and Linking to Routes
Now let's create a new page and add some links for navigating between the two. Open
/src/router/index.js and edit it to look like the following.
We've added a new route
/about that points to a new component called
About. We've also imported the new component at the top. We will create this shortly.
/src/App.vue and edit the
<template> section to look like this.
As you can see, we added two
<router-link> tags using two different methods. The router uses
<router-link> to create html links to routes you created. The first method uses a named route. If you recall, in
/src/router/index.js we added the
name parameter to our routes. In this case the name of the route is
Hello just like the component it points to. The second method is the standard method and just specifies the path we want to link to.
If you refresh the browser, you should see the original welcome page but with two links added.
If you click the
About link, you will get a blank page. This is because we haven't created the component yet. Let's fix this be creating
Now if you refresh the browser and click
About you should see the new page.
So we can create a new page and a route to point to it but what about passing parameters? We'll need a page that displays some useful info about various crypto currencies based on a string id passed in the URL. Let's make that happen. Open
/src/router/index.js again and add a third route.
In order to display up-to-date information on the various currencies, we'll use the popular axios http client to fetch data from the free Coin Market Capitalization API. We'll accept a string parameter in the URL called
:id. This will be passed to the API to retrieve the relevant data.
First we need to install axios.
Next create a file called
You'll notice that in the data object of our component, we declare an empty object called
coin. This will store our coin information after it is fetched. In the
<template> section we have some markup to display the name, symbol and US dollar price of the coin. The
created method is a special hook used by Vue that is called before the component is rendered. In this case we are calling the
fetchData method which is making a
GET request with axios to the Coin Market Capitalization API and passing the
:id parameter at the end.
We get the parameter from the
params property. This object is auto injected by VueRouter. The paramater we want is the
:id parameter which we defined in our router file. On success, as defined in the the
then promise method, we save the data returned into our
coin object. This is then rendered on in the template.
One other thing we need is to add a
watch hook for the
$route object. VueRouter components are only rendered once for speed. If you need to rerender, you need to do that manually so in this case we want to rerender when the
:id parameter in
$route changes and then fetch new data.
Now lets create a few more links in
/src/App.vue to see how this new page might be used.
If you refresh the browser and click on
Ethereum you should see something like this.
Now click on
Bitcoin and you should see relevant information for that coin as well. If you want to try out other coins, have a look at https://api.coinmarketcap.com/v1/ticker/ and paste a few ids from the list into the URL of our app.
That's how easy it is to get started with Vue Router. There are a bunch of other great features as well and you can read about them in the official documentation. I hope this tutorial is enough to get you started making some cool SPAs in Vue!
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History – How To Play – Rules – Odds – Strategy – Pro’s Perspective
Slot machines are referred to as slots, pokies, 1-arm bandits, fruit machines and poker machines. Players will place wagers in the form of coins (or virtual coins if it is an online slot) in order to spin the reels of the game. Any slot machine will have a minimum of 3 reels and players can start spinning these reels by pulling a lever (or clicking on Spin). The symbols on the reels will start to spin until they stop. When they stop, players will be rewarded according to the combination of symbols they achieve on the payline. The payline is a virtual line on which players must get certain symbols in order to get paid.
Players will be paid based on the bet they have placed, the combination of symbols, and the paytable of the game. The paytable is a table that shows players the different combinations and their respective rewards. This paytable is usually found at the top above the reels of the slot machine or on the game screen itself – whether land or online-based. The symbols appearing on these reels are usually bars, cherries, bells, watermelon, and sevens, this is why they were called fruit machines. Other advanced slots might have a certain theme. For these games, the symbols will be inspired by that theme. For example, Thunderstruck is an online slot which is themed around Thor and the Norse gods. On this game’s reels, players will see symbols that include Thor, Thor’s Hammer, and Odin among other related symbols.
The history of the first slot machine dates back to 1895. The father of the first slot machine was Charles Fey, whose original slot machine had poker symbols on its three spinning reels. The symbols also included hearts, horseshoe, bells, and spades. Since the game only had 3 reels automatically, it was easy to make the game payout for the winning combinations. The game paytable was available at the top and it showed players the different winning combinations. The highest combination paid 50 cents when players got 3 bells on the win line.
In 1891, Sittman and Pitt invented another form of slot machine. This new machine looked a lot like the early version of slots that can still be found to this day. The game included five reels and 50 cards with a poker game theme since players were paid according to the poker hand they formed. This is why they were called poker machines. Players would start the game by putting a nickel into the game’s slot and by pulling the lever in order for the reels to spin so they could get a poker hand. Most of these machines used to pay players in the form of gifts such as cigars, drinks, or food or other things that were sold at the pub or bar where it was being offered. In order to increase the odds of the house and make it hard to get a poker hand like a Royal Flush, the game did not have a 10 of Spades or a Jack of Hearts.
In 1907, Herbert Mills invented another machine that was called Operator Bell and by 1908 these slots were installed in every bowling alley, cigar store, or salon. One of these original “Liberty Bell” slots can still be found in a Reno Restaurant in Liberty Bells Saloon.
Another great development occurred in 1963 when Bally invented the 1st electromechanical slot machine called The Money Honey. This was the first slot to have a bottomless hopper and it offered automatic payouts as well. The biggest reward that could be claimed was 500 coins. This machine was one of the reasons behind the skyrocketing rise of electronic gambling. Reel Em was the first-ever video slot that offered players bonus rounds.
In the 1990’s multi-line slots made an entrance to the scene. These games had more than one winning line. This meant that players could claim payouts according to combinations on more than one line aligned on the game’s screen. With the emergence of online gambling, slots were one of the first games to be adopted and transformed into online games. They developed quickly and can now offer up to 100 lines and 1024 ways to win. They also offer players a lot of bonuses in the form of wilds, scatters, and progressive jackpots.
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Slot machines can be found at every gambling venue, whether online or land-based. The online gambling world has fewer restrictions in terms of technology and development, therefore players will find a wider array of slot machines than those found at land-based gambling venues. We are going to discuss the gaming procedure for both online slot machines and land-based slots:
For Land-Based Slots:
For land-based slots, players will have to buy bar-coded coins, quarters or other cash values the game accepts. Usually, players will see the cash value the game accepts written on the game itself. After players enter the coin or cash in the game’s slot, they will pull down the lever or press the spin button, causing the reels of the slot to spin. The symbols on these reels are usually themed around fruits that are accompanied by bells, sevens, and the usual one bar, two bar, and three bar symbols.
After the reels stop spinning, players will be rewarded if they have a winning combination on the game’s win line. Players can find out the combinations that would make them eligible for a win at the game’s paytable. This paytable can be found at the top of the reels, or these days on the game screen itself. It will show the different combos and their rewards.
There are also slot machines that resemble video slots that can be found online. (Some can even be found with the same features online.) These video slots usually have a touch screen that players will use in order to control the game like in video poker.
For Online Slots:
Players who want to enjoy this game at an online casino will have to follow another gaming procedure. For online slots, players will first choose the game, then they will choose their wagers. Choosing the wagers, whether a classical or a multi-line video slot, includes 3 options:
- Choose the number of lines that players want to activate by placing their stakes on.
- Choose the coin value that players want to use to place wagers and get rewards.
- Choose the number of coins they wish to place on every activated line. All of this creates the wager. The total amount of their bet will be seen under the Bet Cell.
After placing the wager, players will be able to start the game by clicking on Spin. It is usually found under the reels in the game’s control panel in between or next to the wagering options that were mentioned above. The symbols will spin and, after they stop spinning, players will be paid according to the paytable, their bet, and the winning combination. The paytable can also be viewed at the top or as players click on “View Pays” or Paytable that is found somewhere on the game’s screen.
The rules differ from one slot machine to another. Each slot machine will have its own set of rules printed on the game itself or, in the case of online slots, players can view them by clicking on “Game Rules.”
Max Bet Only Triggered Bonuses:
Some bonuses and jackpots will not be triggered or activated unless players have placed the maximum wager.
Wild symbols differ from one game to another and can substitute for any other symbol the slot machine has. These wild symbols will not replace other bonus or scatter symbols.
Triggering the Jackpot:
The jackpot is triggered when players get a certain combination of symbols on any of the winning lines of the game. It can be found at the paytable.
Scatter symbols are special symbols that reward players generously in the form of scatter payouts. They can also trigger free spins. Free spins mean players will get a number of spins on the slot for game free. They are usually triggered when players get three scatters on the reels or three of the bonus symbols on the payline.
Apart from these rules, there are also some rules of etiquette that players should follow when playing at a land-based casino or a venue that is offering these slots.
Players can play on two slot machines side by side provided that the gambling venue or the casino is not crowded. If it is crowded and there are players waiting to be seated, the attendant will ask players who are playing on two slots to end one of the sessions.
Some players prefer to keep rapidly clicking on the buttons thinking that it gives them better luck. This is usually frowned upon because it causes the buttons to wear out quickly and causes a lot of disturbance to other players in the casino or the gambling venue.
Players who want to watch another player spinning the reels should leave one chair between them and the players unless they plan to play on the slot machine right next to that person. If they do not do that, an attendant will approach them and ask them to move away.
It is ok to celebrate when you get a big win or hit the jackpot, provided that you do not celebrate for too long. Also, when you get a big win, it is customary in certain parts of the world to tip the attendant who is getting the payout for you. It’s common etiquette.
Lastly, if you spot a slot machine that has a leaning chair on it, it is advised to leave that slot machine alone. It signals someone is still playing at the slot machine and he had to go to the bathroom or get something to drink and will be back shortly, it is courteous to leave it for a maximum of 10 minutes before you move the chair and take a seat.
Slots are usually programmed to payout 82 to 98 percent of what was wagered in the form of winnings. This percentage is known as RPT (Return to Player) or the Theoretical Payout Percentage. The minimum RTP for every slot machine depends on the regulations and laws of the state or country. In Nevada, for example, the minimum percentage is 75 percent, in New Jersey it is 83 percent and in Mississippi, it’s 80 percent.
The winning combinations and patterns on a slot machine, the amount it pays, and the frequency of these payouts are carefully calculated and selected so they pay a specific fraction of money to the casino or the house while giving back the rest to the players. For example, a spin on a slot machine costs one dollar and it has an RTP percentage of 95. It can be calculated that over the long term, for example after one million spins, the game is going to give back $950,000 to players from the 1,000,000 dollars they have put into the slot. The house or the operator will keep the remaining $50,000.
The RTP is not the only important statistic in slots as the percentage of every payout on the game’s paytable is also important. For example, in any slot machine that has 12 different rewards in the paytable, the probability of every reward equaling 0 percent except the jackpot can be quite deceptive. If the jackpot win is 4000 times the wager, then it would happen 1 time every 4000 spins and would make the game have an RTP of 100 percent, despite being a very dull game.
The table of the probabilities for any slot machine is called the Paytable & Reel Strips sheer, also known as PARS. PARS helps players understand the psychology of the slot machine. For instance, if the game has 13 payouts that range from 1:10 up to 2400:1 it will show that the 1:1 payout would happen once every 8 spins, the 5:1 would happen once every 33 spins while the 2:1 payout will happen once every 600 spins. The PARS sheet is usually confidential and developers and manufacturers never post them; however, it is possible to find the PARS sheet of any of your favorite games posted online. Despite this, they are not of any real value to players as slot machines usually have 8 to 12 different programs that have varying payouts.
Slot machines are also known for the “Taste.” The Taste refers to a small amount of money the game pays every few spins to those who are seated at a slot machine to keep them engaged in the game. The logic is simple: if players keep losing their bets without winning any back, they will eventually grow bored and leave the game. The taste is usually the 1:1 or the 2:1 payout.
Slot machines are games of luck, so there are no strategies or techniques to implement. On the other hand, there are some tips and suggestions that may be quite useful for any player who is looking forward to spinning the slots:
Stick With Slots With a Low Jackpot:
If you are a land-based casino player, you will notice that the slot machines that offer millions in jackpots are not that popular because the chances of hitting the jackpot are very slim. This is why you should stick to slot machines that have a jackpot in the $1,000 range since you have a better chance of triggering it. These smaller jackpot slots are known for paying out better rewards and more frequently, too.
Know When You Should Move On:
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Yukon gold casino no deposit bonus codes 2019. Like any other casino game, you might find yourself on a losing streak. When that happens you should just move on or stop playing or perhaps go to another slot to change your luck.
Quit While You Are Ahead:
If you have been on a winning streak or have just hit a jackpot, it is a good idea to cash in your winnings and leave. The more you play the bigger the chance you might lose what you won (or at least a big chunk of it). Like any casino game, you should quit while ahead.
Work According to a Betting Pattern:
You should always follow a wagering pattern that will help you earn rewards. For example, always start with the minimum wager possible and, if you lose, up it up a notch and keep increasing the bet after each spin. When you win, do the opposite. The + / – betting pattern is not guaranteed as there are no guaranteed betting patterns for slots because it is 100 percent random, but this can help increase your odds.
Placing the Maximum Wager:
Although this contradicts the last tip, it is another way of playing. The aim is to place the highest wager so you can earn high rewards. This is essential in online video slots as some bonuses cannot be triggered if players do not place the max bet.
There are also some misconceptions we have to clarify:
- Playing the game faster will not increase the chances of winning.
- Clicking on the spin or pulling the lever rapidly will not affect the outcome of the slot. They are all the same.
- Each spin is independent, so the game will never be “due to hit”.
- When someone wins a great payout on a slot machine that you left does not mean that you missed that payout. There is a big chance that you wouldn’t have hit the same payout because you would not have pulled the lever at the same fraction of a second that the player did.
Pro’s Perspective: Slot Strategies and Tips
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Modern slot machines are multimedia technological marvels complete with animation, sound effects, and sometimes even video clips from movies and television shows.
While three-reel slots still exist, the majority in both live casinos and online casinos have five reels, and sometimes have six, seven, or more. Instead of one payline, modern video and online slots usually have 20, 30, 40, or more pay lines. Some don’t even use pay lines at all, making any combination of the same symbols connecting from left to right a potential winner, even if they’re not on a line as such.
During regular play, you may win a trip to a bonus event during which you have a chance to win money without making any additional wagers. Here are a few of the most common bonus types.
You could win a specified number of free reel spins. Many free spin bonuses are played on the same reels as the main game and it’s possible to win any of the usually available prizes. Sometimes, the main reels fade from the screen and are replaced by bonus reels with different symbols and different winning potential.
For example, in the last few years, games have been introduced in which the lowest-paying symbols are removed from the bonus reels. It’s still possible to win nothing on a bonus spin, but the frequency of big winnings are increased.
The original wheel spin game, Wheel of Gold, was introduced in the mid-1990s and it led to the ever-popular Wheel of Fortune slots. Since then most slot manufacturers have incorporated wheel spins.
In a wheel spin bonus, you see a wheel divided into prize segments. On some, all prizes are credit amounts, but some wheels offer credit multipliers, progressive jackpots, and trips to other bonus events. You start the wheel spinning, then hope it lands on a big-paying space.
The reels are replaced by a different scene. Some have included aliens in hiding spaces, dancing gift-wrapped boxes, dishes on a Chinese menu, fishermen on a pond, and much more.
You touch the screen to choose an icon, and the item then reveals a credit reward for you to collect. On some pick’em events, you make just one choice. On others, you keep picking until you choose a bonus-stopper symbol.
All these bonus events are designed to make the games interactive and fun to play. How much they contribute to the overall payback differs from game to game and manufacturer to manufacturer, but as much as 40 percent of the overall return may come from bonuses.
Free spin games tend to be more volatile with the potential for bigger wins offset by the possibility of spins that bring no credits. Pick’ ems are used in what the slot industry calls “entertainment” games in which it’s larger goal is to add fun and extend your play rather than to offer big wins.
Ultimately, which is best for you comes down to personal preference. Do you like pick’em entertainment or do you want to keep those reels spinning?