Among these settings, we can mention whether the application designed on the operating system is installed or not. For example, using user interfaces, users can easily use them to be informed whether the application is installed on the system or not. In this part of the tutorial, we want to tell users about whether or not the application is installed on the system. Also, if the application is not installed on the system, go to the application's virtual stores at high speed to purchase and install the requested version of the application. In this case, it will first check whether the application has been installed on the system or not, and if the application is not installed, refer to virtual stores such as Google Play or stores to purchase and install.
Here are some things you will learn in this part of the tutorial:
- When and in what cases do we need to know if an application is installed on the system?- Create a project to ensure and check whether the application is installed on the system- How to direct and transfer users to the page and window of virtual stores to purchase and install applications- When and in what cases do we need to know if an application is installed on the system?In this part of the tutorial we will give you examples so that you can know the reasons why we need to know if the application is installed on our system or not. For example, consider the situation that the existence and installation of an application depends on other applications, and in order for other applications to function properly, this application must be installed on the system. That's why we have to program in a way that I can go through to make sure they are installed or not. If the desired application, on which the performance of other applications also depends, is not installed on the system, a page and a window should be opened to take the user to the download and installation page of the desired application.In other cases, consider applications for online taxis, of which there are two versions of the application. One version is for passengers and the other version is for online taxi drivers. If one of the versions of these applications is not installed on the Android system of the driver or passenger, to continue and complete the process, it is necessary to ensure that both versions of the application are installed on the systems, because the performance of this type of applications depends on each other. Must have both types of installation installed. After the installation process of installing both versions of the application, if the installation of each of these versions is not installed, the relevant window and page will open so that users can download the application.
Coding speed is one of the most important issues, but in addition to the importance of this issue, the performance of the code is also of a great importance, and it is necessary to examine all the issues together, so that they can provide a good result in the end, and you can achieve success as soon as possible, one of the most important issues for different users is that they can use it easily while visiting a web page , and another issue that is very important for them is to load the page at high speed, which causes the users to have a good user experience .If the points which have been mentioned above are not considered for the users who visit your website , the users will leave the website as soon as possible and search again for a site that contains those mentioned features, which can have a bad effect on your website ranking on search engine results page , there are several ways to improve the performance as well as the speed of a site that we are going to mention in the following.
How to optimize coding speed in JavaScript?
In order to increase the speed of coding, it is necessary for the person who is coding to have complete mastery of this language and be able to decide with full knowledge about each situation, and use the advantages of features that exist in this language properly in order to speed up coding in the best way possible, as you know, there are various possibilities in this language, among which we can mention functions, possibilities for performing mathematical calculations, the possibility of drawing rectangles and hundreds of other possibilities, the most important point in relation to these cases is that the programmer must know the situation that each of them should be used.
Improving JavaScript Performance:
Performance Improvement can have a huge impact on attracting different users, and here are a few things you can do in order to improve performance, in order for users to be able to meet their needs much faster, you can store variables in a local domain, so that when the variable searches for a local variable, it can quickly access it and provide it to the user, one of the features in this language that you can get help from it, is using let or const before each variable.- In order not to cause the local variable to disappear, it is better to avoid using global variables, because the scripting engine refers to global variables to look at the domain from within another domain function which can causes the local variable to disappear.- Another way to improve performance is to use the JavaScript Cache API, which makes it easier for the user to access all variables.
There are many articles about site design that attract different users which try to help them create attractive content for their users as much as possible, one of the ways in which you can design a content is CSS, which we are going to examine in more detail below.In CSS, you can do a lot of things and finally create interesting content for users who visit the site, so that users can gain positive user experience, some of which we will examine, but before that we need to give a brief explanation about CSS in order to get acquainted with the topic in general.
Pseudo-classes are used to specify the state in which the element is located, for example you can use this to make a difference between the point which are mentioned in the following.- You can design the element in such a way that exactly at the moment that the mouse goes on it, you can notice it by changing its appearance.- There are other situations, such as when a link has not been visited or has been visited, which can be designed in such a way that there is a difference between these two, so you can understand the state of the element easily.- Another situation that an element can have is to design it for when it is clicked, for example, imagine that there is a box which gives you the opportunity to write a content in it, the way of implementing it, is as follows:
There are many programmers, each of whom can master different languages in order to create the best possible different programs that the user can use, one of the programming languages that is very popular among programmers is JavaScript programming language, which they use extensively to achieve their goals.There are various features in this language, and among all of these features, we can mention the existence of different functions as well as closure function, which we will discuss in the following.
What is a JavaScript programming language?
It is one of the most popular programming languages available, through which complex features can be easily implemented and enable the user in order to provide a better user interaction.
Call function:
It is possible to use this property for different objects by writing only one method, the point that should be mentioned in this regard, is that all the functions that exist in this language are objects.Consider the following example.
<! DOCTYPE html> <html> <body>
<h2> JavaScript Functions </h2>
<p> This example creates an object with 3 properties (firstName, lastName, fullName). </p> <p> The fullName property is a method: </p>
<p id = "demo"> </p>
<script> var myObject = my firstName: "Rose", lastName: "kia", fullName: function () { return this.firstName + "" + this.lastName; } } x = myObject.fullName (); document.getElementById ("demo"). innerHTML = x; </script>
</body> </html> The result of the example will be as follows.
JavaScript Functions
This example creates an object with 3 properties (firstName, lastName, fullName).
You definitely know that programming can provide you with a good income, and in addition to the good income you can have from this way, it also allows you to not get tired while doing work and continue to work with interest, due to the fact that there is so much variety in this world and if you are interested in it, you can continue your journey with pleasure.Programmers need to master different programming languages, one of the most important ones they need to master is JavaScript which we are going to continue to explore its various features, but before that it is necessary to explain the language briefly.
Objects in JavaScript are a set of key-value pairs, these values can include specifications and methods, and in addition, it may include other types of data in this language, which we are going to examine further in the following, here consider the following example.
// Initialize an object with properties and methods const job = job position: 'cashier', type: 'hourly', isAvailable: true, showDetails () { const accepting = this.isAvailable? 'is accepting applications': "is not currently accepting applications";
console.log (`The $ {this.position} position is $ {this.type} and $ {accepting} .`); } };
// Use Object.create to pass properties const barista = Object.create (job);
Each of the programming languages has different features and programmers can use each of which in order to create better content but first you have to learn them as good as possible, a good content, as you know, can attract more users, and ultimately, if you have created a site or program through the features available in different languages, you can get a high ranking on the search results page , so that you can achieve such as soon as possible due to the fact that attracting users to the website is one of the factors of success .One of the most popular programming languages is JavaScript, which, like all existing languages, has various features, in this article we are going to discuss training of comparative and Boolean operators.
What is JavaScript?
It is one of the programming languages that can be used to implement various features and finally can help the user to interact better with the created content.
JavaScript Comparison:
As the name implies, if you want to compare variables as well as existing values, you can use this to determine if there are similarities or differences between variables and existing values, simply put, you can use it to determine whether the comparison you made is true or false, if you want to do any of the following comparisons, you must use the appropriate operators to do so, which are mentioned below.- In order to compare whether the two values are equal or not, you must use ==, but it should be noted that in this case only the value is compared and the equality or inequality of the type is not considered.- In order to check whether the value and type you want to compare with each other are equal or not, === is used.- To see that the value that we think of it, is not equal to the existing values of != Must be used.- Inequality of type is not considered, if you want to consider inequality of type and value, you must use !==.- To compare two values in terms of being larger or smaller than the other, you should use x> y and x<y, respectively.- It can also be checked whether the variables are greater than or equal to each other or smaller than and equal to each other, for which the following should be used, respectively:>= & <=
Logical Operators:
These operators are used for logic between variables or values, you should pay attention to the point that If you want to compare two different cases at the same time, you need to use the AND operator (&&), for better understanding, you should pay attention to the following example.
JavaScript is one of the programming languages that has a lot of fans, and if it is used, it can cause users to get a better user experience when using the content which is created with the help of this language, so that, they will suggest your website to their friends, and as a result, more users will be attracted to your website .There are various possibilities in this language that can be used to perform different actions, each of which has a wide world, and in order to be able to master them, it is necessary to pay attention to the different examples that exist for each of them.This article gives a brief overview on While loop, for loop in JavaScript and Break and Continue commands, and we are going to give you examples, so that you can master this language, but before that we need to give a brief explanation about this language.
It is one of the features in this language that if you use it, a block of code will be executed as long as the conditions mentioned are met.However, if you are not careful while writing this code, the browser may crash because the loop never ends.Note in the example below that the code in the loop will run until variable (i) is less than 10.
While the initial segment of each test is amazingly critical, it is simply a large portion of the battle, the planning, and the execution. How the information is taken care of is similarly fundamental, and it can prompt inventive outcomes and perceptions to perform great information in the right way.The most startling piece of performing research is constantly utilized as information preparation. However, it doesn't need to be that way. Although you should realize how to manage the information and how to break down the information, factual examination programming can make this assignment as smooth and direct as could be expected. Help Writing research papers is one of the most difficult aspects of academic study. As a result, students begin looking for help in order to write the best research paper possible.To lead factual information investigation and exploration, an immense scope of insights devices are accessible, and underneath we list the seven best measurement apparatuses for examination and information examination.
Best measurements Tools For Data Analysis and Research
There are various sorts of factual apparatuses accessible for your exploration and information examination accessible on the web. You need to check everything before picking the best one for you. Beneath, we have recorded the best seven apparatuses for information investigation and examination:
SPSS
SPSS, often known as the Statistical Package for the Social Sciences, is possibly the most widely used measuring software in human behaviour research. Factual Package for the Social Sciences gives the ability to rapidly incorporate authoritative measurements, parametric and nonparametric examinations, and graphical portrayals of results in the graphical UI (GUI). It also includes deciding to make content to mechanize investigation or to take out more prevalent measurable handling. The SPSS programming bundle was made for the administration and factual examination of social information. It was first distributed by SPSS Inc. in 1968 and then acquired by IBM in 2009. Economic analysts utilize SPSS, wellbeing scientists, study organizations, government substances, schooling specialists, showcasing associations, information diggers, and many more for handling and investigating study information. For example, you gather with an online review stage like Alchemy.
SAS(Statistical Analysis Software)
SAS is an apparatus for a measurable investigation that allows utilizing the GUI or producing more modern examinations. It is a top-notch approach that is generally utilized to examine an industry, medical care, and human instinct. Progressed investigation can be completed, and distribution commendable outlines and diagrams can be made, albeit the coding can likewise be a difficult change for those not familiar with this technique. SAS is utilized:
Web owners are always trying to improve the quality of content on the web and in order to achieve this goal, they take various measures and use all available facilities, to draw graphics on web pages, you can use the Canvas element, which we are going to explain to you in this regard, so that we can learn the ways to implement important things together, such as adding shadows, text, and so on.
What is HTML Canvas?
This element is used to draw graphics, and the important point is that, in order to do this, scripting is required, which is usually used in JavaScript and you can apply the graphics through it, finally, with the help of this element, text, shadows, paths, etc., can be added to the images, if you want to make them more attractive to different users.This element is one of the most attractive features in HTML5 , and it should be noted that almost all browsers today support Canvas, and through it, you can draw graphics using JavaScript while running (On The Fly).
Canvas Rectangle:
This method is used in order to draw a rectangle which has various parameters that we are going to mention in the following.
Available parameters:
- width:
This parameter represents the width of the rectangle which is in pixels.
- Height:
As you know, in addition to the width of the rectangle, it also has a length, which determines the height of the rectangle, and it is also in pixels.
- x:
By using this parameter, you can specify the coordinates that the upper-left corner of the rectangle should have and determine where the rectangle should start from.
- y:
This parameter also specifies the coordinates of the upper-left corner, so with these 4 parameters, a rectangle can be drawn.Another point that should be mentioned is that you can also specify the color of the rectangle by using the command ctx.strokeStyle, which we are going to show you an example of coding in order to draw a rectangle with the help of JavaScript .For example, suppose you want to draw a blue rectangle with line width 6, length 250, width 150 and at 5&5 point, you need to do the following with JavaScript.
so that they can be opened from the bottom of the page to the top of the page and show the required information to users, and Bottom Sheets , including components Material Design are on Android. They have two different types, one Persistent Bottom Sheet and Modal Bottom Sheet (modal bottom sheets android), both of which are used to display information to users, and the way to access them is by dragging them from the bottom of the page and then the item information We see the needs and details. It should be noted that these can be used in applications such as Google Maps and Google Drive. Google Drive and Google Maps are examples of their use in applications.
what is a bottom sheet?
If we pin a place on the map in Google Maps, a Bottom Sheet will be created that has more information and details about it and they will provide details to the users. If we press the MORE INFO button or drag the page upwards, the whole screen will be displayed and the information and details related to it will be displayed on a larger screen.This component in the Google Drive application can also be used to create folders or upload files. In this case, we drag the page from the bottom to the top and the whole screen of the Bottom Sheet is displayed and all the desired operations can be performed there.
bottom sheets android example
1- We create a new project in Android Studio and choose its name as desired. The name chosen for this project in this tutorial is SimpleBottomSheet.2- Then you need to create an Empty Activity.3- It is worth mentioning that in order to be able to create and launch this project properly, we must add the Support Design library to the project. Like the following:
dependencies { implementation fileTree (dir: 'libs', include: ['* .jar']) implementation 'com. android. support: appcompat-v7:27.1.1' implementation 'com. android. support:design:27.1.1' } In this project that we are building, we are just launching a simple Bottom Sheet, which is why we only have to work with the activity layout and not with Java.4- Select and create a Root Layout of the CoordinatorLayout type to display the Bottom Sheet.5- The codes that should be in the activity_main.xml section are as follows:
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