With many EcmaScript features coming to the modern browsers, you might be wondering what else do we need web frameworks for. Looking back, Angular 1.x, Backbone, JQuery and other libraries come and go, but the new features such as
class and many others are here to stay, so it might be worth looking into the new kids on the block.
Custom Elements v1 + Shadow DOM v1
87% of the browsers already support custom elements
with Custom Elements, you can create your own HTML tags that contain your own component logic and self-contained styles, all that without a single library used. But is this enough to replace react’s component system? Let’s have a look.
A new custom element can be defined in just 2 lines:
defines an element called “hello-world”
Now to use it, all we need to do is use the
<hello-world> component as if it was a normal HTML component:
Now, we need to define what is displayed on the screen. Let’s say that we want the content to be a heading saying “hello world from” followed by the user’s specified name. Luckily, Shadow DOM can be used to scope CSS styles to a single custom element allowing us to build self-contained components with ease that will work in vanilla js, React, Angular or Vue. The following code listens for the “name” attribute change and updates the view based on the name.
This allows us to scope the styles and build reactive applications that can change during runtime and the view will update accordingly. It’s also pretty good when it comes to performance, as only the
span will update with all the other components staying the same. However, as you can see we are manupulating the DOM manually and it’s not as declarative as react is, where the render function contains variables directly instead of having to contain placeholder elements (
<div id="name"> instead of
Using this method in order to update data on the DOM might seem a little less convenient than just using React DOM where it computes which elements need to be updated rather than you having to change the innerHTML/innerTEXT of those elements, but it comes at a cost. Adding it to your application will cost you 100KB of JS code.
It might not seem like a lot, but it’s still almost 0.7s added to the user waiting time on 3g and on the web, time is money. Literally. 60% of users leave of the site doesn’t load within 3s and 80% of them don’t come back.
The short answer is yes. There are plenty of websites out there that are built without using a framework; GitHub and YouTube are probably the most popular ones.
The long answer might be a little more complicated than you think. As we have already investigated in this article, writing custom, reusable components without using a single framework can be done quite easily. However, web apps consist of more than just components. They also often include:
Can it be done? I can already tell you today that the answer is yes. Is it maintainable, reliable and efficient? Well, we already know that writing reusable components can be done well by utilizing Custom Elements and Shadow DOM, but what about the rest? Read the other articles to find out and learn about the potential future of writing web applications without having to learn/use a framework.
As earlier mentioned, web components are framework agnostic, meaning they can be used within any application, no matter whether it’s vanilla JS, React or Angular. If you are currently building a set of reusable components and you would like to share it with others or you’re looking for components for your next app, check out bit.dev.
It’s very easy to use custom components; simply pick the one you want to use, run the
npm install shown on the component page, and import it. For example, running
npm i @bit/wiredjs.wired-elements.wired-progress and adding the following definition to the code allows you to use a cool hand-drawn progress bar:
#reactjs #angular #vue
If you are undertaking a mobile app development for your start-up or enterprise, you are likely wondering whether to use React Native. As a popular development framework, React Native helps you to develop near-native mobile apps. However, you are probably also wondering how close you can get to a native app by using React Native. How native is React Native?
In the article, we discuss the similarities between native mobile development and development using React Native. We also touch upon where they differ and how to bridge the gaps. Read on.
Let’s briefly set the context first. We will briefly touch upon what React Native is and how it differs from earlier hybrid frameworks.
Although relatively new, React Native has acquired a high degree of popularity. The “Stack Overflow Developer Survey 2019” report identifies it as the 8th most loved framework. Facebook, Walmart, and Bloomberg are some of the top companies that use React Native.
The popularity of React Native comes from its advantages. Some of its advantages are as follows:
Are you wondering whether React Native is just another of those hybrid frameworks like Ionic or Cordova? It’s not! React Native is fundamentally different from these earlier hybrid frameworks.
React Native is very close to native. Consider the following aspects as described on the React Native website:
Due to these factors, React Native offers many more advantages compared to those earlier hybrid frameworks. We now review them.
#android app #frontend #ios app #mobile app development #benefits of react native #is react native good for mobile app development #native vs #pros and cons of react native #react mobile development #react native development #react native experience #react native framework #react native ios vs android #react native pros and cons #react native vs android #react native vs native #react native vs native performance #react vs native #why react native #why use react native
The aim of this video is to take a comprehensive look at such widely used frameworks – #Angular and #Vue – and one library – #React.
And also share your opinions on these three in the comment section.
Angular JS is a typescript-based application developed by Google. It’s an open-source web application framework, specifically made for the front end Web developers. As we know that the Angular is created by Google it gets very good support from Google and some individual communities of developers.
Read More:- https://infoatone.com/why-the-industries-are-choosing-to-react-instead-of-angular/
#angular #angular and react #js cons of angular #cons of react js #difference between angular and react js #pros of react js
Multiple vulnerabilities in the Citrix Application Delivery Controller (ADC) and Gateway would allow code injection, information disclosure and denial of service, the networking vendor announced Tuesday. Four of the bugs are exploitable by an unauthenticated, remote attacker.
The Citrix products (formerly known as NetScaler ADC and Gateway) are used for application-aware traffic management and secure remote access, respectively, and are installed in at least 80,000 companies in 158 countries, according to a December assessment from Positive Technologies.
Other flaws announced Tuesday also affect Citrix SD-WAN WANOP appliances, models 4000-WO, 4100-WO, 5000-WO and 5100-WO.
Attacks on the management interface of the products could result in system compromise by an unauthenticated user on the management network; or system compromise through cross-site scripting (XSS). Attackers could also create a download link for the device which, if downloaded and then executed by an unauthenticated user on the management network, could result in the compromise of a local computer.
“Customers who have configured their systems in accordance with Citrix recommendations [i.e., to have this interface separated from the network and protected by a firewall] have significantly reduced their risk from attacks to the management interface,” according to the vendor.
Threat actors could also mount attacks on Virtual IPs (VIPs). VIPs, among other things, are used to provide users with a unique IP address for communicating with network resources for applications that do not allow multiple connections or users from the same IP address.
The VIP attacks include denial of service against either the Gateway or Authentication virtual servers by an unauthenticated user; or remote port scanning of the internal network by an authenticated Citrix Gateway user.
“Attackers can only discern whether a TLS connection is possible with the port and cannot communicate further with the end devices,” according to the critical Citrix advisory. “Customers who have not enabled either the Gateway or Authentication virtual servers are not at risk from attacks that are applicable to those servers. Other virtual servers e.g. load balancing and content switching virtual servers are not affected by these issues.”
A final vulnerability has been found in Citrix Gateway Plug-in for Linux that would allow a local logged-on user of a Linux system with that plug-in installed to elevate their privileges to an administrator account on that computer, the company said.
#vulnerabilities #adc #citrix #code injection #critical advisory #cve-2020-8187 #cve-2020-8190 #cve-2020-8191 #cve-2020-8193 #cve-2020-8194 #cve-2020-8195 #cve-2020-8196 #cve-2020-8197 #cve-2020-8198 #cve-2020-8199 #denial of service #gateway #information disclosure #patches #security advisory #security bugs
#angular #react #vue #vue.js #react-native