- ReactJS is a declarative, efficient, and flexible JavaScript library for building reusable UI components.
- It is an open-source, component-based front end library which is responsible only for the view layer of the application.
- It was initially developed and maintained by Facebook and later used in its products like WhatsApp & Instagram.
Few popular websites powered by React library are listed below -
- Facebook, popular social media application
- Instagram, popular photo sharing application
- Netflix, popular media streaming application
- Code Academy, popular online training application
- Reddit, popular content sharing application
As you see, most popular application in every field is being developed by React Library.
Why we use ReactJS?
- The main objective of ReactJS is to develop User Interfaces (UI) that improves the speed of the apps.
- It uses virtual DOM (JavaScript object), which improves the performance of the app. The JavaScript virtual DOM is faster than the regular DOM.
- We can use ReactJS on the client and server-side as well as with other frameworks.
- It uses component and data patterns that improve readability and helps to maintain larger apps.
How does React Work?
- React creates a VIRTUAL DOM in memory.
Instead of manipulating the browser’s DOM directly, React creates a virtual DOM in memory, where it does all the necessary manipulating, before making the changes in the browser DOM.
React finds out what changes have been made, and changes only what needs to be changed.
React Application Architecture
- The React library is just a UI library, and it doesn't implement any special patterns for writing a complex application. Developers are free to choose the design pattern of their choice. The React community advocates certain design patterns.
- One of the patterns is the flux pattern. React library also provides many concepts like higher order components, context, render props, refs etc. to write better code. React Hooks is developing concept to do state management in large projects. Let's try to understand the high-level architecture of a React application.
- React app starts with a single root component.
- The core component is created by using one or more components.
- Each component can be nested with any other component at any level.
- Composition is one of the core concepts of the React library. Therefore, each component is built by composing smaller components rather than inheriting one component from another.
- Most of the components are user interface components.
- React apps may include third-party components for a specific purpose, such as routing, animation, state management, etc.
Advantage of ReactJS
1. Easy to Learn and Use
ReactJS is much easier to learn and use. It comes with a good supply of documentation, tutorials, and training resources. Any developer who comes from a JavaScript background can easily understand and start creating web apps using React in a few days. It is the V(view part) in the MVC (Model-View-Controller) model, and referred to as ?one of the JavaScript frameworks.? It is not fully featured but has the advantage of open-source JavaScript User Interface(UI) library, which helps to execute the task in a better manner.
2. Creating Dynamic Web Applications Becomes Easier
To create a dynamic web application specifically with HTML strings was tricky because it requires a complex coding, but React JS solved that issue and makes it easier. It provides less coding and gives more functionality. It makes use of the JSX(JavaScript Extension), which is a particular syntax letting HTML quotes and HTML tag syntax to render particular subcomponents. It also supports the building of machine-readable codes.
3. Reusable Components
A ReactJS web application is made up of multiple components, and each component has its own logic and controls. These components are responsible for outputting a small, reusable piece of HTML code which can be reused wherever you need them. The reusable code helps to make your apps easier to develop and maintain. These Components can be nested with other components to allow complex applications to be built of simple building blocks. ReactJS uses virtual DOM based mechanism to fill data in HTML DOM. The virtual DOM works fast as it only changes individual DOM elements instead of reloading complete DOM every time.
4. Performance Enhancement
ReactJS improves performance due to virtual DOM. The DOM is a cross-platform and programming API which deals with HTML, XML or XHTML. Most of the developers faced the problem when the DOM was updated, which slowed down the performance of the application. ReactJS solved this problem by introducing virtual DOM. The React Virtual DOM exists entirely in memory and is a representation of the web browser's DOM. Due to this, when we write a React component, we did not write directly to the DOM. Instead, we are writing virtual components that react will turn into the DOM, leading to smoother and faster performance.
5. Known to be SEO Friendly
Traditional JavaScript frameworks have an issue in dealing with SEO. The search engines generally having trouble in reading JavaScript-heavy applications. Many web developers have often complained about this problem. ReactJS overcomes this problem that helps developers to be easily navigated on various search engines. It is because React.js applications can run on the server, and the virtual DOM will be rendering and returning to the browser as a regular web page.
6. The Benefit of Having JavaScript Library
Today, ReactJS is choosing by most of the web developers. It is because it is offering a very rich JavaScript library. The JavaScript library provides more flexibility to the web developers to choose the way they want.
7. Scope for Testing the Codes
ReactJS applications are extremely easy to test. It offers a scope where the developer can test and debug their codes with the help of native tools.
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Centre to Launch Economic Zone and Two Daanish Schools in Sindh: A Step Toward Development and Opportunity
The federal government has announced plans to launch a new economic zone and establish two Daanish schools in Sindh, signaling a renewed focus on regional development and social investment. These initiatives are being viewed as an important step toward improving economic activity, creating employment opportunities, and expanding access to quality education in the province. At a time when Pakistan faces economic pressure, rising unemployment, and gaps in educational access, such projects carry significant importance. Supporters argue that targeted investments like economic zones and merit-based schools can help reduce inequality and promote long-term stability. Understanding the Proposed Economic Zone Economic zones are designated areas created to attract investment, encourage industrial growth, and generate jobs. The planned economic zone in Sindh is expected to provide incentives such as tax relief, improved infrastructure, and streamlined regulations to businesses operating within it. Sindh, with its strategic location and access to ports, already plays a vital role in Pakistan’s economy. A new economic zone could further strengthen this position by attracting both local and foreign investors, particularly in manufacturing, logistics, and export-oriented industries. If implemented effectively, the zone could: Create thousands of direct and indirect jobs Support small and medium enterprises Increase exports and industrial output Reduce regional economic disparities Economic experts believe that such zones can act as growth engines, especially when paired with reliable energy supply, transport links, and transparent governance. Why Sindh Needs Economic Expansion Sindh is home to major urban centers as well as vast rural areas. While cities like Karachi contribute heavily to national revenue, many parts of the province still struggle with underdevelopment, limited employment options, and poverty. The new economic zone could help decentralize economic activity by encouraging industries to expand beyond major cities. This may reduce migration pressure on urban centers and bring development closer to rural communities. However, analysts emphasize that success will depend on careful planning, coordination with provincial authorities, and sustained policy support. Daanish Schools: Expanding Access to Quality Education Alongside economic development, the Centre’s plan to establish two Daanish schools in Sindh reflects a strong focus on education as a tool for social uplift. Daanish schools are residential institutions designed to provide free, high-quality education to talented students from underprivileged backgrounds. Originally launched in Punjab, these schools aim to bridge the gap between elite private education and struggling public schools. By expanding this model to Sindh, the government hopes to offer bright students from low-income families a chance to compete on merit, regardless of their social or economic status. How Daanish Schools Can Make a Difference Education experts often point out that poverty and lack of opportunity are closely linked to limited access to quality education. Daanish schools attempt to break this cycle by focusing on: Merit-based admissions Modern curriculum Qualified teachers Residential facilities for students from remote areas For families who cannot afford private schooling, such institutions offer a rare opportunity for upward mobility. Graduates of Daanish schools are expected to pursue higher education and eventually contribute to national development. In Sindh, where educational challenges include low enrollment rates and uneven quality, the introduction of these schools could have a meaningful impact. Linking Education and Economic Growth The announcement of both an economic zone and Daanish schools highlights an important policy connection: economic growth and education go hand in hand. An economic zone creates jobs and investment, but its long-term success depends on a skilled and educated workforce. At the same time, quality education prepares young people to take advantage of emerging economic opportunities. By investing in both areas simultaneously, the Centre appears to be aiming for a more balanced development approach—one that addresses immediate economic needs while also building human capital for the future. Challenges and Public Expectations Despite optimism, these initiatives face challenges. Past development projects in Pakistan have sometimes suffered from delays, funding issues, and coordination problems between federal and provincial governments. Public trust will depend on: Transparent project timelines Fair land acquisition processes Equal access to education Long-term funding commitments There is also a strong expectation that local communities should be consulted and included, especially when land and resources are involved. Political and Social Significance The decision to invest in Sindh carries political and social significance as well. Federal projects in the province are often closely watched, with debates around autonomy, resource sharing, and representation. Supporters see the move as a positive sign of federal commitment to inclusive development. Critics, however, argue that announcements must translate into real progress on the ground to make a lasting difference. Looking Ahead If executed effectively, the economic zone and Daanish schools could become important milestones in Sindh’s development journey. Together, they represent an approach that combines infrastructure, industry, and education—key pillars of sustainable growth. The coming months will be crucial in determining whether these plans move swiftly from announcements to implementation. Final Thoughts The Centre’s plan to launch an economic zone and two Daanish schools in Sindh reflects an effort to address both economic and social challenges through targeted investment. While the initiatives hold promise, their success will depend on transparency, coordination, and long-term commitment. For many in Sindh, these projects symbolize hope—for jobs, education, and a more equitable future. Whether that hope turns into reality will be measured not by announcements, but by outcomes.
By Muhammad Hassan4 days ago in Education
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