Yes, and yes. Node and Apache / PHP can co-exist on a single server. The only issue you are likely to run into is that they cannot both listen on the same port. HTTP, by default, runs on port 80 and only one process can "listen" on a single port at any one time. You may therefore have to run the Node app on a different port (for example, 8080 ...Node.js for PHP developers: 5 must-know pragmatic aspects with code examples. While the popularity of Node.js is increasing, PHP’s traction is going down. With that context, this post is going to elaborate on 5 must-know practical aspects of using Node.js for PHP developers. These will be things no-one talks or writes about, time to get going.Sep 12, 2012 · Both textContent and nodeValue return unescaped text; i.e. < becomes <.. textContent concatenates together all of the content of all children. This is an important distinction; for example, in Chrome the maximum length of nodeValue is 65536 characters (not bytes); if you have already set the content of a node to something longer than that you will need to iterate child nodes if you want to ... Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question.Provide details and share your research! But avoid …. Asking for help, clarification, or responding to other answers.Meant for PHP errors. DOM_INDEX_SIZE_ERR ( int ) 1. If index or size is negative, or greater than the allowed value. DOMSTRING_SIZE_ERR ( int ) 2. If the specified range of text does not fit into a DOMString . DOM_HIERARCHY_REQUEST_ERR ( int ) 3. To change the PHP settings, open your User or Workspace Settings ( ⌘, (Windows, Linux Ctrl+,)) and type 'php' to filter the list of available settings. To set the PHP executable path, select the Edit in settings.json link under PHP > Validate: Executable Path, which will open your user settings.json file. PHP scripts have an extension of .php and can contain Javascript, HTML, CSS and even plain text. Node.js is an open-source server-side Javascript run-time environment built on Chrome’s JavaScript Engine (V8). Node.js is used for building fast and scalable applications and is an event driven, non-blocking I/O model.Aug 9, 2023 · Node.js developers may now choose from the pool of various amazing frameworks and scaffolding, including Vue, Meteor, Angular, React, Express, Vue, and more. The list goes on, and the most difficult part is to pick an excellent option for the project. While talking about Node JS and PHP, both are powerful options for backend development ... Examples Running in the Command Line Interface. In this tutorial there will be some examples that are better explained by displaying the result in the command line interface. When this happens, The "Show Node.js" tool will show the result in a black screen on the right: by Arun Mathew Kurian How to build a real time chat application in Node.js using Express, Mongoose and Socket.io In this tutorial, we will use the Node.js platform to build a real time chat application that sends and shows messages to a recipient instantly without any page refresh.Mon Jan 11, 2010 10:52 pm. Website. by OSWorX » Thu Sep 02, 2021 5:20 pm. On the 27th August 2021 OpenCart 3.0.3.8 was released If you encounter any problems or bugs with that version, please check first the issue section at Github (especially if you are a developer). Jun 9, 2022 · Node.js is typically applied in a couple of places, such as multithreaded apps, web applications, browsers, and game servers. The technology is exceptionally great for creating dynamic one-page applications that work in a real-time, data-intensive manner, inclusive of distributed sessions across numerous devices. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more.Create a built-in PHP server for PHP framework in node.js script.. Latest version: 0.1.2, last published: 9 years ago. Start using node-php-server in your project by running `npm i node-php-server`. There are 6 other projects in the npm registry using node-php-server. Sends the task to the computer's file system. Ready to handle the next request. When the file system has opened and read the file, the server returns the content to the client. Node.js eliminates the waiting, and simply continues with the next request. Node.js runs single-threaded, non-blocking, asynchronous programming, which is very memory ...Here are key features of PHP: It includes pre-written and ready-to-use codes that speed up the development. Support many database services which include MySQL, Oracle, Sybase and more. Comes with in-built security features for protection against common security threats such as SQL injections, data tampering and more.Jan 22, 2020 · There are four cases that may arise in removing a node from a binary tree: Removing the root node. Removing a leaf node. Removing a node with either a right or left subtree but not both. Finally ... After upgrading phpmyadmin lots of warnings and notices is being shown while running any task. errors is shown below. Deprecation Notice in .\\vendor\\twig\\twig\\src\\Loader\\FilesystemLoader.php#40 re...Mar 18, 2022 · Oh, do you mean phpmyadmin from individual sites? You can't run it under 8.0. Don't run it from individual sites at all, it's insecure, instead run it from a central location and have individual sites redirect or reverse proxy to that location if you want all those urls to work. Create a built-in PHP server for PHP framework in node.js script.. Latest version: 0.1.2, last published: 9 years ago. Start using node-php-server in your project by running `npm i node-php-server`. There are 6 other projects in the npm registry using node-php-server. Oh, do you mean phpmyadmin from individual sites? You can't run it under 8.0. Don't run it from individual sites at all, it's insecure, instead run it from a central location and have individual sites redirect or reverse proxy to that location if you want all those urls to work.Stack Overflow Public questions & answers; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Talent Build your employer brandMeant for PHP errors. DOM_INDEX_SIZE_ERR ( int ) 1. If index or size is negative, or greater than the allowed value. DOMSTRING_SIZE_ERR ( int ) 2. If the specified range of text does not fit into a DOMString . DOM_HIERARCHY_REQUEST_ERR ( int ) 3.The XML DOM views an XML document as a tree-structure. The tree structure is called a node-tree. All nodes can be accessed through the tree. Their contents can be modified or deleted, and new elements can be created. The node tree shows the set of nodes, and the connections between them. The tree starts at the root node and branches out to the ...Node.js developers may now choose from the pool of various amazing frameworks and scaffolding, including Vue, Meteor, Angular, React, Express, Vue, and more. The list goes on, and the most difficult part is to pick an excellent option for the project. While talking about Node JS and PHP, both are powerful options for backend development ...Aug 6, 2015 · I am trying to read some specific child nodes from xml in php which i want to display but i m not able to display the node values.Following is my xml format which i m trying to read <nns2: W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more.Jan 29, 2017 · Stack Overflow Public questions & answers; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Talent Build your employer brand require hmac signing as message authentication. this insures that only php can broadcast messages to the socket. the socket will inspect the signed token, and if it passes, ti will then broadcast the message. this is good for preventing spam and ensure data integrity. so never post directly to the node socket from the client. instead post to php app with ajax, then relay that to the socket ... PHP scripts have an extension of .php and can contain Javascript, HTML, CSS and even plain text. Node.js is an open-source server-side Javascript run-time environment built on Chrome’s JavaScript Engine (V8). Node.js is used for building fast and scalable applications and is an event driven, non-blocking I/O model.reddit. Dockerise your PHP application with Nginx and PHP7-FPM. And my steps: create two laravel project (app & project) create a docker-compose file on same level to the folders. File tree: ngin_proxy - app - project - nginx -- nginx.conf - docker-compose.yml. docker-compose.XML Parsers. An XML parser is a program that translates the XML document into an XML Document Object Model (DOM) Object. The XML DOM Object can then be manipulated using JavaScript, Python, and PHP etc.DOMNode::hasChildNodes — Checks if node has children. DOMNode::insertBefore — Adds a new child before a reference node. DOMNode::isDefaultNamespace — Checks if the specified namespaceURI is the default namespace or not. DOMNode::isSameNode — Indicates if two nodes are the same node.No, it doesn't have one. For this reason most popular libraries come with one in their utility packages. Check out jQuery's inArray and Prototype's Array.indexOf for examples.In PHP vs Node.JS, PHP is the clear winner with 26% on Statista. Node.js is a relatively new technology that was launched in 2009. Even though Node is a very popular backend tool that has been gaining more and more traction, the community is smaller.Stack Overflow Public questions & answers; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Talent Build your employer brandAug 1, 2023 · DOMNode::isSameNode — Indicates if two nodes are the same node. DOMNode::isSupported — Checks if feature is supported for specified version. DOMNode::lookupNamespaceURI — Gets the namespace URI of the node based on the prefix. DOMNode::lookupPrefix — Gets the namespace prefix of the node based on the namespace URI. Less effective than PHP in mixing code with content. PHP is better at mixing code with content. Application Speed. Better application speed than PHP. Less application speed when compared to Node.js. Simplicity. More complex than PHP. Not many complications making the PHP coding simpler than Node.js. Separating Concerns.Aug 6, 2015 · I am trying to read some specific child nodes from xml in php which i want to display but i m not able to display the node values.Following is my xml format which i m trying to read <nns2: Node.js® is a JavaScript runtime built on Chrome's V8 JavaScript engine. Latest LTS Version: 18.17.1 (includes npm 9.6.7). Download the Node.js source code or a pre-built installer for your platform, and start developing today.Aug 9, 2023 · Node.js developers may now choose from the pool of various amazing frameworks and scaffolding, including Vue, Meteor, Angular, React, Express, Vue, and more. The list goes on, and the most difficult part is to pick an excellent option for the project. While talking about Node JS and PHP, both are powerful options for backend development ... Node.js. Node.js® is an open-source, cross-platform JavaScript runtime environment. Create a New Element Node. The createElement () method creates a new element node: Example. newElement = xmlDoc.createElement("edition"); xmlDoc.getElementsByTagName("book") [0].appendChild(newElement); Try it Yourself ». Example explained: Suppose books.xml is loaded into xmlDoc. Create a new element node <edition>.reddit. Dockerise your PHP application with Nginx and PHP7-FPM. And my steps: create two laravel project (app & project) create a docker-compose file on same level to the folders. File tree: ngin_proxy - app - project - nginx -- nginx.conf - docker-compose.yml. docker-compose.Deprecation Notice #17267. Deprecation Notice. #17267. Closed. DeveloperDotSystem opened this issue on Dec 30, 2021 · 2 comments.Sep 12, 2012 · Both textContent and nodeValue return unescaped text; i.e. < becomes <.. textContent concatenates together all of the content of all children. This is an important distinction; for example, in Chrome the maximum length of nodeValue is 65536 characters (not bytes); if you have already set the content of a node to something longer than that you will need to iterate child nodes if you want to ... May 15, 2019 · Output: Note: The output of both examples are different. In the first example, the output will display in default frame and pixel size which is generated directly on browser whereas the output of the second example is a ‘png’ file with pixel and frame size as 10 stored in a directory. Book a Call. One of the most popular places where we see PHP and SEO come together is on WordPress. Many of us content marketers use WordPress for its simplicity and ease of use. The ability to upload files, drag and drop, and work directly in WordPress is why we use it. Most of this is thanks to PHP.Stack Overflow Public questions & answers; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Talent Build your employer brand🚨 This project is not maintained anymore. As I write these lines, it's been nearly two years since the latest release of PuPHPeteer. Despite the enthusiasm around this project, I no longer have the motivation to support its development, mainly because it never really had any use to me. Sends the task to the computer's file system. Ready to handle the next request. When the file system has opened and read the file, the server returns the content to the client. Node.js eliminates the waiting, and simply continues with the next request. Node.js runs single-threaded, non-blocking, asynchronous programming, which is very memory ...Oct 30, 2014 · Node. finalNodeGeneratedHash = nodeGeneratedHash.replace ('$2a$', '$2y$'); Then compare phpGeneratedHash to finalNodeGeneratedHash. Note: It is recommended that if you're comparing in PHP, change the prefix of the NodeJS generated hash to $2y$ and if you're comparing in NodeJS; change the prefix of the PHP generated hash to $2a$. Share. Apr 11, 2023 · PHP scripts have an extension of .php and can contain Javascript, HTML, CSS and even plain text. Node.js is an open-source server-side Javascript run-time environment built on Chrome’s JavaScript Engine (V8). Node.js is used for building fast and scalable applications and is an event driven, non-blocking I/O model. DOMNode::hasChildNodes — Checks if node has children. DOMNode::insertBefore — Adds a new child before a reference node. DOMNode::isDefaultNamespace — Checks if the specified namespaceURI is the default namespace or not. DOMNode::isSameNode — Indicates if two nodes are the same node.Oct 19, 2011 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question.Provide details and share your research! But avoid …. Asking for help, clarification, or responding to other answers. The Node.js event-driven model improves the performance of the web application making the execution of a Node.js application way faster than that of a PHP one. The asynchronous nature gives Node.js a competitive edge over PHP as it helps improve the user experience and reduce downtime.In PHP 5.2.5 (Windows) it is not possible to iterate correctly over the DOMNodeList object returned by DOMNode->childNodes using foreach. Instead I had to use the for loop in conjunction with the item() method of DOMNodeList for iterating over all child nodes correctly.Save the code above in a file called "demo_create_mongo_db.js" and run the file: Run "demo_create_mongo_db.js". C:\Users\ Your Name >node demo_create_mongo_db.js. Which will give you this result: Database created! Important: In MongoDB, a database is not created until it gets content! MongoDB waits until you have created a collection (table ... The XML DOM views an XML document as a tree-structure. The tree structure is called a node-tree. All nodes can be accessed through the tree. Their contents can be modified or deleted, and new elements can be created. The node tree shows the set of nodes, and the connections between them. The tree starts at the root node and branches out to the ... Dec 7, 2018 · 2. The problem Was in path of the aplication php can't find the application by using just node /../..php try to use the command bellow should make the work : @HamzaNig : /usr/bin/node mostly is the default path. @Joe : /usr/local/bin/node is the default path on his platform. Share. This change in php has been done to remove ambiguity in the decision tree so that there is an explicit order of condition execution. The deprecation warning is reproduced here: DOMDocument::getElementsByTagNameNS — Searches for all elements with given tag name in specified namespace. DOMDocument::importNode — Import node into current document. DOMDocument::load — Load XML from a file. DOMDocument::loadHTML — Load HTML from a string. DOMDocument::loadHTMLFile — Load HTML from a file.In PHP vs Node.JS, PHP is the clear winner with 26% on Statista. Node.js is a relatively new technology that was launched in 2009. Even though Node is a very popular backend tool that has been gaining more and more traction, the community is smaller.Aug 9, 2023 · Node.js developers may now choose from the pool of various amazing frameworks and scaffolding, including Vue, Meteor, Angular, React, Express, Vue, and more. The list goes on, and the most difficult part is to pick an excellent option for the project. While talking about Node JS and PHP, both are powerful options for backend development ... The XML DOM views an XML document as a tree-structure. The tree structure is called a node-tree. All nodes can be accessed through the tree. Their contents can be modified or deleted, and new elements can be created. The node tree shows the set of nodes, and the connections between them. The tree starts at the root node and branches out to the ...Mar 18, 2022 · Oh, do you mean phpmyadmin from individual sites? You can't run it under 8.0. Don't run it from individual sites at all, it's insecure, instead run it from a central location and have individual sites redirect or reverse proxy to that location if you want all those urls to work. Comparison Overview: Node.js vs PHP. Node.js has the advantage of being faster due to its event-driven architecture and non-blocking I/O model. However, PHP has a faster startup time and lower memory footprint, making it suitable for projects with limited resources. Both technologies have distinct features, pros, and cons.Aug 10, 2023 · Zadhid Powell , August 10, 2023. Node.js and PHP are two essential web technologies commonly featured in web development endeavors. Both have contributed to server-side development, and Node.js even serves both client-side and server-side development. PHP has been serving developers for almost three decades, and it now powers 78% of the web. Jun 13, 2015 · Call PHP via Child Process Dependency. Using the Node JS exec command, we can call to a PHP script. The exec command is essentially just calling a linux command directly. So the first part of the command, php, invokes the PHP application. We then tell it what the path is to the PHP script, and lastly provide any arguments we want to pass to PHP. NodeJS. First of all, since JavaScript code in Node.js is interpreted with the V8 engine (in which Google invests heavily), Node.js's performance is remarkable. Second, Node.js executes the code outside the web browser, so the app is more resource-efficient and performs better.Dec 7, 2018 · 2. The problem Was in path of the aplication php can't find the application by using just node /../..php try to use the command bellow should make the work : @HamzaNig : /usr/bin/node mostly is the default path. @Joe : /usr/local/bin/node is the default path on his platform. Share. Call PHP via Child Process Dependency. Using the Node JS exec command, we can call to a PHP script. The exec command is essentially just calling a linux command directly. So the first part of the command, php, invokes the PHP application. We then tell it what the path is to the PHP script, and lastly provide any arguments we want to pass to PHP.var phpfpm = new PHPFPM(configObject); configObject may have the following keys: documentRoot optional [string] the document root folder of PHP scripts. must end with /. host optional [string] the ip or host name of php-fpm server (default: 127.0.0.1) port optional [int] the port of php-fpm server ( default: 9000 ) sockFile optional [string ...Mar 26, 2023 · In PHP vs Node.JS, PHP is the clear winner with 26% on Statista. Node.js is a relatively new technology that was launched in 2009. Even though Node is a very popular backend tool that has been gaining more and more traction, the community is smaller. Jul 18, 2021 · Start by navigating into the project directory via your terminal/shell and then create a docker-compose.yaml file using any of the following commands—. MacOS/Linux —. touch docker-compose.yaml ... PHP is a server-side scripting language created in 1995 by Rasmus Lerdorf. PHP is a widely-used open source general-purpose scripting language that is especially suited for web development and can be embedded into HTML. What is PHP used for? As of October 2018, PHP is used on 80% of websitesLess effective than PHP in mixing code with content. PHP is better at mixing code with content. Application Speed. Better application speed than PHP. Less application speed when compared to Node.js. Simplicity. More complex than PHP. Not many complications making the PHP coding simpler than Node.js. Separating Concerns.Book a Call. One of the most popular places where we see PHP and SEO come together is on WordPress. Many of us content marketers use WordPress for its simplicity and ease of use. The ability to upload files, drag and drop, and work directly in WordPress is why we use it. Most of this is thanks to PHP.W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. When used predicate in XPath-query, function DOMXPath::query () gives a warning and query does not work. In order to earned the query, it is necessary to explicitly specify the axis. The file of this example is to be in the encoding WINDOWS-1251. Tested in PHP 5.2.9-2 and PHP 5.2.17.Jun 9, 2022 · Node.js is typically applied in a couple of places, such as multithreaded apps, web applications, browsers, and game servers. The technology is exceptionally great for creating dynamic one-page applications that work in a real-time, data-intensive manner, inclusive of distributed sessions across numerous devices. Start a PHP server. Latest version: 1.0.0, last published: 2 years ago. Start using php-server in your project by running `npm i php-server`. There are 4 other projects in the npm registry using php-server.Aug 1, 2023 · DOMDocument::getElementsByTagNameNS — Searches for all elements with given tag name in specified namespace. DOMDocument::importNode — Import node into current document. DOMDocument::load — Load XML from a file. DOMDocument::loadHTML — Load HTML from a string. DOMDocument::loadHTMLFile — Load HTML from a file. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. Book a Call. One of the most popular places where we see PHP and SEO come together is on WordPress. Many of us content marketers use WordPress for its simplicity and ease of use. The ability to upload files, drag and drop, and work directly in WordPress is why we use it. Most of this is thanks to PHP.PrintNode-PHP. PrintNode is a cloud printing services which allows you to connect any printer to your application using our PrintNode Client and easy to use JSON API. See www.printnode.com for more information. This quick start guide covers using the PHP API library. It shows how to find which Computers and Printers you have available for ...NodeJS. First of all, since JavaScript code in Node.js is interpreted with the V8 engine (in which Google invests heavily), Node.js's performance is remarkable. Second, Node.js executes the code outside the web browser, so the app is more resource-efficient and performs better.
The XML DOM views an XML document as a tree-structure. The tree structure is called a node-tree. All nodes can be accessed through the tree. Their contents can be modified or deleted, and new elements can be created. The node tree shows the set of nodes, and the connections between them. The tree starts at the root node and branches out to the .... 929 992 7789
Approach: There are a few steps to get the complete URL of the currently running page which are given below: Create a PHP variable that will store the URL in string format. Check whether the HTTPS is enabled by the server. If it is, append “https” to the URL string. If HTTPS is not enabled, append “http” to the URL string.If you want to use PHP Node as your view engine along with ejs then please change set view engine as follows. I have just tested the code and it works for me. app.engine ( 'ejs', engine ); app.set ( 'view engine', 'ejs' ); app.engine ('php', phpnode); app.set ('view engine', 'php'); If I change the engine to php-node everything else will stop ...There are four cases that may arise in removing a node from a binary tree: Removing the root node. Removing a leaf node. Removing a node with either a right or left subtree but not both. Finally ...Oct 19, 2011 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question.Provide details and share your research! But avoid …. Asking for help, clarification, or responding to other answers. When used predicate in XPath-query, function DOMXPath::query () gives a warning and query does not work. In order to earned the query, it is necessary to explicitly specify the axis. The file of this example is to be in the encoding WINDOWS-1251. Tested in PHP 5.2.9-2 and PHP 5.2.17. Sep 11, 2015 · If you want to use PHP Node as your view engine along with ejs then please change set view engine as follows. I have just tested the code and it works for me. app.engine ( 'ejs', engine ); app.set ( 'view engine', 'ejs' ); app.engine ('php', phpnode); app.set ('view engine', 'php'); If I change the engine to php-node everything else will stop ... PHP is a server-side scripting language created in 1995 by Rasmus Lerdorf. PHP is a widely-used open source general-purpose scripting language that is especially suited for web development and can be embedded into HTML. What is PHP used for? As of October 2018, PHP is used on 80% of websitesNode.js is typically applied in a couple of places, such as multithreaded apps, web applications, browsers, and game servers. The technology is exceptionally great for creating dynamic one-page applications that work in a real-time, data-intensive manner, inclusive of distributed sessions across numerous devices.Comparison Overview: Node.js vs PHP. Node.js has the advantage of being faster due to its event-driven architecture and non-blocking I/O model. However, PHP has a faster startup time and lower memory footprint, making it suitable for projects with limited resources. Both technologies have distinct features, pros, and cons.Comparison Overview: Node.js vs PHP. Node.js has the advantage of being faster due to its event-driven architecture and non-blocking I/O model. However, PHP has a faster startup time and lower memory footprint, making it suitable for projects with limited resources. Both technologies have distinct features, pros, and cons.To change the PHP settings, open your User or Workspace Settings ( ⌘, (Windows, Linux Ctrl+,)) and type 'php' to filter the list of available settings. To set the PHP executable path, select the Edit in settings.json link under PHP > Validate: Executable Path, which will open your user settings.json file. Server-side I/O Performance: Node vs. PHP vs. Java vs. Go. Understanding the Input/Output (I/O) model of your application can mean the difference between an application that deals with the load it is subjected to, and one that crumples in the face of real-world uses cases. Perhaps while your application is small and does not serve high loads ... Inline PHP Server Running on Node.js. Be worried, be very worried. The name NodePHP takes its name from the fact that we are effectively turning a nice Node.js server into a FastCGI interface that interacts with PHP-FPM.You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Reload to refresh your session. You switched accounts on another tab or window. Create a New Element Node. The createElement () method creates a new element node: Example. newElement = xmlDoc.createElement("edition"); xmlDoc.getElementsByTagName("book") [0].appendChild(newElement); Try it Yourself ». Example explained: Suppose books.xml is loaded into xmlDoc. Create a new element node <edition>.PHP and Node.js are popular technologies for server-side programming. PHP is a general-purpose scripting language for web development used by many websites and applications. Meanwhile, Node.js is a runtime environment that allows developers to run JavaScript on the server side and is great for building fast, scalable, and efficient back-end ...Call PHP via Child Process Dependency. Using the Node JS exec command, we can call to a PHP script. The exec command is essentially just calling a linux command directly. So the first part of the command, php, invokes the PHP application. We then tell it what the path is to the PHP script, and lastly provide any arguments we want to pass to PHP.Jan 25, 2023 · PHP and Node.js are popular technologies for server-side programming. PHP is a general-purpose scripting language for web development used by many websites and applications. Meanwhile, Node.js is a runtime environment that allows developers to run JavaScript on the server side and is great for building fast, scalable, and efficient back-end ... .