Trending February 2024 # Learn How To Use The Postgresql Position() # Suggested March 2024 # Top 8 Popular

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Introduction to PostgreSQL POSITION()

As we know PostgreSQL supports various data types like string, if we are working with string we might need to manipulate the string data, there are various functions to work with the string-like we might have to find the substring of any string. The PostgreSQL POSITION function is used to find the location or position of the substring within a string. By using the position function we can easily find the location of string-like if we have a string “PostgreSQL is awesome” and we wanted to find the location of the substring “awesome” inside the string.

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Consider the following syntax of the POSITION() function:

SELECT POSITION([SUBSTRING] IN [string]);

Explanation:

[SUBSTRING]: The input string is a substring to search from a string.

[string]: The string from which we want to search a substring.

How does PostgreSQL Position() function work?

One(1) is the first position in the string.

If the POSITION function cannot find the substring within the string, the position function will return the position as zero(0).

Consider the following example to understand the working of the PostgreSQL Position function.

SELECT POSITION('is' IN 'PostgreSQL is awesome') AS position_of_is

The above syntax creates a temporary variable of name position_of_is containing a number. In our case, this number is 12 because the string is “PostgreSQL is awesome,” the first string position returned by the PostgreSQL POSITION function is at character number 12, which will be stored in the position_of_is temporary variable.

Illustrate the result of the above statement by using the following snapshot.

    This function returns us the first position or location of the occurrence of the substring within the string.

    Examples to Implement Position() Function in Postgre SQL

    We will create tables named ‘category’ to understand the examples of this function in detail.

    Consider the following CREATE TABLE statement to create the category table.

    CREATE TABLE category ( category_id serial PRIMARY KEY, category_name VARCHAR(80) NOT NULL );

    Now, we will insert some data in the ‘category’ table by using the INSERT TABLE statement:

    INSERT INTO category(category_name)values ('furniture'), ('Electronics'), ('Cloths');

    Illustrate the result of the above statement by using the following snapshot and SQL statement.

    select * from category;

    1. Consider the following statement, which finds the substring’ n’ position in the column ‘category_name’. 

    SELECT category_id, category_name, POSITION('n' IN "category_name") FROM category;

    Illustrate the result of the above statement by using the following snapshot.

    2. Consider the string ‘PostgreSQL is awesome’ from which we will find out the position of the ‘awesome’ using the PostgreSQL POSITION function.

    SELECT POSITION('awesome' IN 'PostgreSQL is awesome');

    Illustrate the result of the above statement by using the following snapshot.

    3. Consider the following example to understand the case sensitivity.

    SELECT POSITION('AWESOME' IN 'PostgreSQL is awesome');

    Here we can see that the result of position is zero (0), which means that the string AWESOME does not exist in the string ‘PostgreSQL is awesome’.

    4. Consider the following example to understand if the string occurs multiple times.

    SELECT POSITION('is' IN 'This is a PostgreSQL');

    Illustrate the result of the above statement by using the following snapshot.

    Here you can find the substring ‘is’ appears multiple times in the input string ‘This is a PostgreSQL.’

    Advantages of using the Position() function in PostgreSQL

    The POSITION() function considers a string character case while searching for a substring which means it is case sensitive.s

    This function always returns the first instance of occurrence.

    We can find the required string position within a table row using the POSITION function.

    Conclusion

    From the above article, we hope you understand how to use this function and how the POSITION() function works. Also, we have added several examples of the POSITION() function to understand it in detail.

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    Learn The Use Of Substring In Pyspark

    Introduction to PySpark substring

    PYSPARK SUBSTRING is a function that is used to extract the substring from a DataFrame in PySpark. By the term substring, we mean to refer to a part of a portion of a string. We can provide the position and the length of the string and can extract the relative substring from that.

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    PySpark SubString returns the substring of the column in PySpark.

    We can also extract character from a String with the substring method in PySpark. All the required output from the substring is a subset of another String in a PySpark DataFrame. This function is used in PySpark to work deliberately with string type DataFrame and fetch the required needed pattern for the same.

    Syntax

    df.columnName.substr(s,l)

    column name is the name of the column in DataFrame where the operation needs to be done.

    s: The starting Index of the PySpark Application.

    l: The Length to which the Substring needs to be extracted.

    df: The PySpark DataFrame.

    b = a.withColumn("Sub_Name",a.Name.substr(1,3))

    Screenshot:

    The withColumn function is used in PySpark to introduce New Columns in Spark DataFrame.

    a. Name is the name of column name used to work with the DataFrame String whose value needs to be fetched.

    Working Of Substring in PySpark

    Let us see somehow the SubString function works in PySpark:-

    The substring function is a String Class Method. The return type of substring is of the Type String that is basically a substring of the DataFrame string we are working on.

    A certain Index is specified starting with the start index and end index, the substring is basically the subtraction of End – Start Index.

    String basically is a char[] having the character of the String with an offset and count. A new string is created with the same char[] while calling the substring method. A different offset and count is created that basically is dependent on the input variable provided by us for that particular string DataFrame.

    The count is the length of the string in which we are working for a given DataFrame.

    By This method, the value of the String is extracted using the index and input value in PySpark.

    One more method prior to handling memory leakage is the creation of new char[] every time the method is called and no more offset and count fields in the string.

    Example

    Let us see some Example of how the PYSPARK SubString function works:-

    Example #1

    Let’s start by creating a small DataFrame on which we want our DataFrame substring method to work.

    a= spark.createDataFrame(["SAM","JOHN","AND","ROBIN","ANAND"], "string").toDF("Name")

    This creates a Data Frame and the type of data in DataFrame is of type String.

    Let us see the first example to check how substring normal function works:-

    b=a.withColumn("Sub_Name",a.Name.substr(1,3)).show()

    This will create a New Column with the Name of Sub_Name with the SubStr

    Screenshot:

    Example #2

    Let’s check if we want to take the elements from the last index. The last index of a substring can be fetched by a (-) sign followed by the length of the String.

    Let’s work with the same data frame as above and try to observe the scenario.

    Creation of Data Frame.

    a= spark.createDataFrame(["SAM","JOHN","AND","ROBIN","ANAND"], "string").toDF("Name")

    Let’s try to fetch a part of SubString from the last String Element.

    b = a.withColumn("Name_End" ,a.Name.substr(-2,2))

    This prints out the last two elements from the Python Data Frame.

    b = a.withColumn("Name_End" ,a.Name.substr(-3,3)).show()

    This will print the last 3 elements from the DataFrame.

    Screenshot:

    The substring can also be used to concatenate the two or more Substring from a Data Frame in PySpark and result in a new substring.

    Let’s check an example for this by creating the same data Frame that was used in the previous example.

    Creation of Data Frame.

    a= spark.createDataFrame(["SAM","JOHN","AND","ROBIN","ANAND"], "string").toDF("Name")

    Now let’s try to concat two sub Strings and put that in a new column in a Python Data Frame.

    Since SQL functions Concat or Lit is to be used for concatenation just we need to import a simple SQL function From PYSPARK.

    from pyspark.sql.functions import concat, col, lit

    This will all the necessary imports needed for concatenation.

    b = a.withColumn("Concated_Value", concat(a.Name.substr(-3,3),lit("--"),a.Name.substr(1,3))).show()

    This will concatenate the last 3 values of a substring with the first 3 values and display the output in a new Column. If the string length is the same or smaller then all the strings will be returned as the output.

    Screenshot:

    From these above examples, we saw how the substring methods are used in PySpark for various Data Related operations.

    Conclusion

    From the above article, we saw the use of SubString in PySpark. From various examples and classification, we tried to understand how the SubString method works in PySpark and what are is used at the programming level.

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    Guide To The Working Of Postgresql Replication

    Introduction to PostgreSQL Replication

    It is necessary to implement various strategies to maintain the high availability of the PostgreSQL database and achieve load balancing in scenarios with a large number of users. One such strategy is utilizing multiple database servers collaborating to serve the users effectively. In this case, it is very easy to provide this facility if all the operations are read-only, which means no operation is performed on the data present in the database servers; only the available data is retrieved. In this topic, we are going to learn about PostgreSQL Replication.

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    But in the case of reading/write, servers that involve all kinds of manipulations on the database’s data becomes difficult. This is because a single change in one database should be reflected in all the database servers that are serving the users. In this scenario, data replication is utilized to duplicate or replicate data across multiple database servers. It involves making the same change in all the database servers with which the server is operating, ensuring high availability for the end-users.

    Working on PostgreSQL Replication

    In PostgreSQL, typically, there is one database server that handles all modification-related operations and requests. Other database servers, commonly referred to as slave servers or standby database servers, then replicate or propagate these changes. That means the master nodes are always the replicated data’s senders, while slave nodes receive the replicated data and apply the same changes over there.

    PostgreSQL provides a built-in replication feature known as streaming replication, which operates on a master-slave architecture. When utilizing cascading, both the slave or standby database servers have the capability to send and receive replicated data to and from the master database server.

    The slave of standby servers always keep track of the changes made by the master server and tries to keep themselves updated. There are two types of standby database servers, namely hot and warm standby servers. Warm servers are servers that require promotion to the master server role before they can accept user connections. On the other hand, hot standby servers are capable of accepting user connections and performing read-only operations.

    The streaming replication system in PostgreSQL utilizes the Write-Ahead Log (WAL) file logging system. This system marks a transaction as committed before applying the corresponding change to the target database. However, this difference is minimal; hence there is no inconsistency between the main and replicated database values.

    Settings

    In the upcoming sections of this article, we will discuss the settings that need to be configured on each of the master, slave, or sending users.

    Sending database servers 1. max_wal_senders(integer)

    The maximum number of allowed connections with other slave database servers at a single instance can be specified by this parameter. The parameter’s default value is zero, indicating the absence of replication support and disallowing replicated database connections. This value cannot exceed max_connections as this value is equivalent to the number of current wal connections.

    2. wal_keep_segments(integer)

    The standby servers require 16-megabytes of past log files stored in the pg_xlog directory for streaming replication in Postgres. The minimum number of segments required by the standby servers for proper replication can be specified by this parameter. You can set its value either from the server command line prompt or the chúng tôi configuration file of PostgreSQL.

    3. replication_timeout(integer)

    If the standby servers crash or if some network issues occur, the connection to that server must terminate. The server command line prompt or the chúng tôi configuration file of PostgreSQL is where you can modify this parameter. The connection will be terminated if no response is received within a specified time span. The default value for this parameter is 60 seconds.

    Master database servers

    You should configure the mentioned parameters on the server that serves as the master node or primary node. Additionally, you can also set these parameters on standby servers that may be promoted to the master role in the future.

    1. synchronous_standby_names( string )

    During replication, there are two modes available: synchronous and asynchronous. In synchronous replication, all participating servers in the replication process must confirm the data modification before it is considered committed. This ensures data consistency across all database servers. On the other hand, asynchronous replication may introduce a slight time difference between the transaction’s commitment and the actual changes being made in the target databases. This can occasionally result in stale results. The “synchronous_standby_names” parameter stores a comma-separated list of standby database servers that support synchronous replication.

    2. vacuum_defer_cleanup_age( integer ) Slave/Standby database servers

    You should configure the mentioned settings on the slave or standby database servers intended to receive the replicated data.

    1. hot_standby(boolean)

    The default value of this parameter is set to false. It determines whether it is permissible to establish connections and execute queries while data recovery is in progress.

    2. max_standby_archive_delay( integer )

    The default value for this parameter is 30 seconds. In the context of hot standby servers, PostgreSQL’s streaming replication feature specifies a duration to wait before canceling queries from standby servers. The wait time is crucial for preventing potential conflicts with upcoming Write-Ahead Log (WAL) entries that are about to be applied.

    In addition to the above, three more settings must be configured on the slave server: max_standby_streaming_delay, wal_receiver_status_interval, and hot_standby_feedback.

    Conclusion- PostgreSQL Replication

    We can provide high-availability and balance the load on the database server by maintaining multiple database servers that can work together and implement replication to serve a large number of users without affecting the performance much in the PostgreSQL database. When performing replication, it is crucial to exercise caution and ensure that all settings are properly configured for the respective database servers based on the role they will fulfill in replication and request handling.

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    Learn To Use The Google Play Store On An Android Device

    The Google Play Store gives you access to millions of apps and games you can download for Android devices. It also offers movies, books, and music, though of course not all of them are available in every country. All you need to get started is a Google account — you won’t be able to browse or download content if you don’t have one. Once you have that ready, here’s how to use the Play Store on any Android device.

    Although using the Play Store isn’t exactly rocket science, we want to explain a few basic things you should know. These include things like downloading content, adding a payment method, and redeeming a gift card.

    Download apps and games

    Once you find something you like, tap on it to bring up additional info. This includes a description, user ratings, screenshots, videos, and, of course, the Install button, or a buy button with a price in your currency if it costs something upfront. Tap on that and wait for the device to do its magic. When completed, you’ll get a notification that the content has been downloaded to your device and can be used — tap the notification or the Open button.

    Step-by-step-instructions:

    Search for content via the search box, categories, or home screen.

    Tap on the game or app you like to bring up additional info.

    Hit the Install/buy button to download content to your device.

    Tap the Open button or the notification to access the downloaded content.

    You can also get books and audiobooks

    Of course, the Google Play Store isn’t only about finding apps and games. Google also has plenty of books and audiobooks. These can be found under the Books tab on the Google Play Store home screen.

    The tap is further divided into categories such as Ebooks, Audiobooks, Comics, and Children’s books, all accessed through a carousel menu.

    Step-by-step-instructions:

    Search for content in the Books tab.

    Tap on the content you like to bring up additional info.

    Check out details and tap Ebook, Audiobook, or a similar button (often with a price attached) to purchase the content. You can use Free sample or Preview to get a taste first.

    Keep in mind that as always, some of the items on the Play Store are free, while you’ll have to pay for others. You’ll need to add a payment method to your Google account to buy content from the Play Store, which we’ll look at in the next section.

    How to manage your Google Play Store payment methods

    Edgar Cervantes / Android Authority

    To buy an app, game, or any other piece of content via the Play Store, you need to add a credit or debit card to your account, or else use PayPal or a Google Play Store gift card. The process is simple and only takes a minute or two.

    How to add a payment method

    The first step is to launch the Play Store app and tap on your profile icon in the top-right corner. Then select Payments & subscriptions, and tap on Payment methods. The last step is to follow on-screen instructions by entering the required details.

    Step-by-step-instructions:

    Launch the Google Play Store app and tap on your profile icon in the top-right corner.

    Select Payments and subscriptions.

    Tap on Payment methods and follow the on-screen instructions.

    Enable authentication for purchases

    Hit the profile icon in the top-right corner and tap on Settings.

    Tap on Authentication.

    Choose Require authentication for purchases and select your preference.

    It’s also a good idea to enable the Biometric authentication toggle.

    Launch the Play Store app and tap on your profile picture.

    Tap on Payments and subscriptions.

    Select Redeem code and type in the code found on your gift card.

    How to update your apps and games using the Google Play Store

    To ensure you get new features and bugfixes for the apps you already own, you have to update them.

    Updating apps manually

    Launch the Google Play Store app and tap on your profile icon. Select Manage apps and device option and tap on Updates available. Alternately you can choose Update all to update everything sight unseen, but you might want to be more selective if time and/or bandwidth is at a premium.

    Step-by-step-instructions:

    Launch the Play Store app tap your profile icon.

    Tap on Manage apps and device.

    Select Updates available.

    Tap on Update next to each app, or else use Update all to speed up the process.

    Updating apps automatically

    The alternative is for your device to update apps and games automatically, which is usually done while charging. To enable this option, tap on your profile icon, then Settings, and select Network preferences. Hit Auto-update apps and pick your preference.

    Step-by-step-instructions:

    Tap on your profile icon and select Settings.

    Tap on Network preferences.

    Select Auto-update apps and pick your preference.

    Launch the Play Store app and tap on your profile icon.

    Select Manage apps and device.

    Tap on Manage.

    Check the app(s) you want to uninstall.

    Tap the trashcan button to delete the selected apps.

    There can be various reasons why the Google Play Store may not be working, such as a poor internet connection, an outdated Play Store app, caching or data issues, or even a problem with your Google account. See our guide for some possible fixes.

    The Play Store app is typically pre-installed on Android devices. If your device doesn’t have it or you accidentally uninstalled it, you can download and install the app by visiting the Play Store website and downloading the APK file. Before downloading, enable the “Unknown sources” option in your device’s settings to allow installation from sources other than the Play Store.

    We don’t recommend uninstalling the Play Store app as it’s an essential part of the Android ecosystem. However, you can disable it if you don’t want to use it. To disable the app, go to your device’s settings, select Apps and notifications, find and select the Google Play Store app, and tap Disable.

    The Google Play Store is the primary app store for Android devices. There are others, such as the Amazon Appstore, but they serve niche purposes.

    Most Frequently Asked Postgresql Interview Questions

    The f

    Relational object database.

    SQL support and extensibility

    API and database validation flexibility.

    MVCC and procedural languages,

    WAL and Client-Server.

    2. List the various data types supported by PostgreSQL.

    The following are some of the new data types added to PostgreSQL:

    UUID

    Numeric types

    Boolean

    Character types

    Temporal types

    Geometric primitives

    Arbitrary precision numeric

    XML

    Arrays, etc.

    3. What are PostgreSQL’s tokens?

    In PostgreSQL, tokens serve as the building elements of source code. They are comprised of a variety of special character symbols. Tokens are keywords mainly made up of predefined SQL commands and meanings. Commands comprise a sequence of tokens separated by a semicolon (‘;’). These may comprise of a constant, a quoted identifier, additional identifiers, a keyword, or a constant. Typically, Whitespace separates tokens.

    4. What are the PostgreSQL Indices?

    Indexes are a special PostgreSQL tool used to improve data retrieval from databases. A database index is similar to a book index. An index provides access to all the values in the indexed columns.PostgreSQL indexes let the database server locate and retrieve specific rows contained within a particular framework. B-tree, hash, GiST, SP-GiST, GIN, and BRIN are other examples. In PostgreSQL, users are indeed free to create their own indices. However, indices increase the complexity of data processing operations and are rarely employed.

    5. How do I set up a PostgreSQL database?

    There are two ways to generate databases. The CREATE DATABASE SQL command comes first.

    Using the following syntax, we may build the database:-CREATE DATABASE ;

    The second approach makes use of the createdb command.

    We could establish the database with the following syntax:- createdb [option…] [description].

    Depending on the use scenario, the createDB command may take many arguments.

    6. How you can create a table in PostgreSQL?

    You may create a new table by defining the table’s name, along with the names and types of each column:

    CREATE TABLE [IF NOT EXISTS] table_name ( column1 datatype(length) column_contraint, column2 datatype(length) column_contraint, . . . columnn datatype(length) column_contraint, table_constraints );

    7. Contrast ‘PostgreSQL’ to ‘MongoDB’

    PostgreSQL is a SQL database in which data is stored in rows and columns of tables. It supports notions like entity-relationship integrity and JOINS. The PostgreSQL querying language is SQL. PostgreSQL supports vertical scaling. This necessitates the usage of large servers for data storage. This results in the need for downtime to update. It performs better if your application requires relational databases or if you need to carry out complex queries that exceed the capabilities of chúng tôi contrast, MongoDB is a NoSQL database. There is no necessity for a schema, therefore unstructured data can be stored. Data is saved in BSON documents, the structure of which may be reformed by the user. MongoDB queries are written in JavaScript. As a result of its adaptability for horizontal scaling, extra servers may be added as needed with low to no downtime. A use case that necessitates a highly scalable, distributed database that holds unstructured data is suited for this technology.

    8. What is PostgreSQL’s Multi-Version concurrency control?

    PostgreSQL uses MVCC, also regarded as Multi-version concurrency control, to implement transactions. It is used to prevent unintended database lockout in the system. Each transaction that queries a database sees a different version of the database. This prevents the display of inconsistent data and provides transaction isolation for each database session. MVCC locks for data reading do not interfere with locks acquired for writing data.

    9. What exactly is pgAdmin?

    pgAdmin is a Web-based GUI utility for interacting with Postgres database sessions. It is applicable to both local and distant servers. Its most recent release, pgAdmin4, is distributed under the PostgreSQL License. pgAdmin4 creation required a complete rebuild of the original pgAdmin program. This version was made with a mix of Javascript/jQuery and Python. pgAdmin can now be used as a desktop runtime or as a web application server, depending on your needs.

    10. How is the database deleted in PostgreSQL?

    Using the syntax, databases may be removed in chúng tôi DATABASE [IF EXISTS] ;

    Please note that only inactive databases can be discarded.

    11. What does a schema consist of?

    Schemas are elements of databases, including tables. They include data types, functions, and operators, among other named object types. The object names are compatible across schemas; unlike databases, schemas are divided more freely. This indicates that a user can access objects in any of the schemas in the database they are linked to until they are granted the appropriate permissions. Schemas are incredibly beneficial when several users must access a single database without interfering with one another. It facilitates the organization of database items into logical categories for better management. To prevent name-based conflicts, third-party applications could be placed in distinct schemas.

    12. What are the most significant differences between SQL and PostgreSQL?

    PostgreSQL is a sophisticated SQL variant. PostgreSQL views cannot be updated.PostgreSQL does not support calculated columns. However, it does provide functional indexes. In PostgreSQL, replication takes the form of reports. PostgreSQL provides actions that are dynamic.

    The PostgreSQL server provides several levels of encryption and flexibility to improve data security from disclosure in an insecure network scenario. Meanwhile, the SQL server is designed to provide a safe database platform. To that end, it includes several capabilities that can encrypt data, decrease authorization, and protect data from unethical acts.

    13. Explain Write-Ahead Logging in detail.

    Write-ahead logging (WAL) is vital to Postgres’ durability and data consistency. All modifications are initially captured to this append-only log, then to the data files on disk. Using write-ahead logging, you can protect your data against corruption. As a result of this method, a complete record of all operations and alterations is maintained. It’s well-known that backing up database changes before implementing or updating them improves the stability of certain databases. A backup log is kept here in case the database fails. When Postgres enforces write operations, it creates WAL (e.g., INSERT, UPDATE, etc.). In situations when WAL creation exceeds the capability of WAL archival off-disk or where a high database load reduces archiver performance, WAL capacity is limited.

    14. What is the definition of a non-clustered index?

    A non-clustered index in PostgreSQL is a simple index used to quickly retrieve data with no assurance of uniqueness. It includes references to other places where data is kept. This is known as a secondary index too. You can have several indices of this category as you want on a given table. Non-clustered indexes are analogous to a document’s “Table of Contents.” We check the page number first, then the page numbers after that to view the entire content. It keeps a pointer to corresponding heap data to get the whole data based on an index. It’s exactly similar to knowing the page number and then going to that page to retrieve the actual content of the page.

    15. How does PostgreSQL provide security?

    PostgreSQL employs two tiers of security.

    Network-level security- Utilization of Unix Domain sockets, TCP/IP sockets, and firewalls for network-level security.

    Transport-level security- Transport-level security employs SSL/TLS to ensure the safe database communication

    Database-level security- Roles and permissions, row-level security (RLS), and auditing are all characteristics of database-level security.

    Conclusion

    In this article, we have seen important PostgreSQL questions. We got a good understanding of different PostgreSQL terminologies. Below are some major takeaways from the above article:

    1. We have seen PostgreSQL’s tokens and what are the benefits of using PostgreSQL.

    2. We learned about How to set up a PostgreSQL database?

    3. We got an understanding of how we can create a table in PostgreSQL?

    And much more.

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    Learn How To Create A Scrollbar In Jquery?

    Introduction to jQuery scrollbar

    The jQuery scrollbar is one of the jQuery library plugins that can be used for to create custom scrollbars with the help of some html elements like div. Additionally, the div tag used as the scroll role for drag and drop events and its easily customizes for while changing the div tag styles. It is also applicable for the scroll events that occur when the user is scrolled as the specified tag elements; it also works on the scroll events for scrollable elements whenever it is triggered or to run the scroll event occurs on the script.

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    Syntax:

    In jQuery library has many features like methods, keywords for creating web pages depend on the requirement. The plugin feature is additionally added on the jQuery library for creating the web application in more sophisticated. In HTML, UI tag elements are combined with the jQuery methods for calling and passing the html tags as the parameter.

    $(document).ready(function(){ $(“#selector”).jqxScrollBar({height, weight}); ——some jQuery script codes depends upon the requirement— } —-html tag elements and the UI logic elements used on the front end—

    The above codes are the basic syntax for utilizing the scrollbar packages on the script and called the code’s js packages.

    How to create a scrollbar in jQuery?

    The chúng tôi is one of the jQuery plugins, and the packages are used to create the customized scrollbars by using the div’s scroll and other default tag elements, which depends on the html codes and the UI. With these plugins’ help, we can call and utilized the methods and classes wherever it is needed and required by the user. These can be achieved by both CSS-like style-sheets and other presentation areas. We can also call these on the effects like animation, images, videos, etc. The scroll bars are supported for both horizontal and vertical type the perfect and actual scrollbars it may not be the perfect webkit-scrollbars the packages are covered and supported with other elements like button, thumb, track, track-piece, corner, and resizer selectors, which may be required on the script.

    The plugins called and utilized these bars wherever it needs. The webkit is one of the browsers that can be used on the pseudo-elements, and these are too customized the browser’s scrollbars on the web-based applications. And the scrollbar features are resized and dragged on the event handler mechanism, which the user held when they called or triggered the particular operations on the script.

    Examples of jQuery scrollbar

    Here are the following examples mention below

    Example #1

    Code:

    $(document).ready(function () { $(“#first”).jqxScrollBar({ width: 303, height: 24 }); $(“#second”).jqxScrollBar({ width: 23, height: 105, vertical: true }); $(“#first”).bind(‘example’, function (event) { $(‘#demo1’).html(‘demo1 (‘ + parseInt(event.currentValue) + ‘)’); }); $(“#second”).bind(‘example’, function (event) { $(‘#demo2’).html(‘demo2 (‘ + parseInt(event.currentValue) + ‘)’); }); }); The scroll bar here we used the horizontal option for inserting the data elements on the script

    Example #2

    Code:

    <script src= (function($){ $(‘.second’).perfectScrollbar(); }); .second { width: 475px; height: 342px; margin: 75px auto 0 auto; position: relative; overflow: auto; } .third { width: 1048px; height: 980px; } Welcome To My Domain ist a second example for creating the web page by using the jQuery plugin called ScrollbarWelcome To My Domain ist a second example for creating the web page by using the jQuery plugin called ScrollbarWelcome To My Domain ist a second example for creating the web page by using the jQuery plugin called Scrollbar Welcome To My Domain ist a second eaxmple for creating the web page by using the jQuery plugin called ScrollbarWelcome To My Domain ist a second eaxmple for creating the web page by using the jQuery plugin called ScrollbarWelcome To My Domain ist a second eaxmple for creating the web page by using the jQuery plugin called ScrollbarWelcome To My Domain ist a second eaxmple for creating the web page by using the jQuery plugin called Scrollbar

    Sample Output:

    Example #3

    Code:

    $(window).scroll(function() { var $vars = $(window).scrollTop(); $(‘#first’).addClass(‘new’); } else { $(‘#first’).removeClass(‘new’); }}); #first { position: scroll; top: 2; left: 1; width: 133%; margin-bottom: 7px; height: 95px; line-height: 94px; background-color: blue; } #first li { margin: 1; padding: 1; float: center; } #first.new { height: 33px; background-color: pink; }

    Sample Output:

    In the final example, we used the scrollbar on the web page itself, and after scrolling the page, the datas and the header panel will change the color.

    Conclusion

    In conclusion, jQuery library, along with the different set of widgets and plugins, create the web-based application on designing the UI front end and the user-friendly nature. The plugins supported some of the browsers, and we need to download the js or configure the CDN path to the script.

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