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What are the benefits of building react app with (NodeJs) over (Without Nodejs) ?
Thanks in advance
There are several advantages with using nodejs assuming you are referring to using nodejs to work with bundlers like webpack etc.
faster development with features like webpack devserver.
modern language constructs. with the kind of plugin ecosystem we are free to use modern language constructs without worrying about browser support. It may be true to some extent for embedding babel and other scripts but not very easy to manage after a stage
helpful in writing unit tests. as the testing config can share most of the development configurations.
features like instrumentation for code coverage can be easily done with minimal configurations
lot of processes can be automated. ex: localization etc.
A lot of things becomes easy and maintainable
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I try to improve my career but at this moment I think how would I start again?
What is your opinion? What is the best way to start?
i wish to know the most relevant roadmaps in frontend developer
First of all, you must learn HTML and CSS. After doing that start learning Javascript. Then you can learn javascript frameworks like React, a free and open-source front-end JavaScript library for building user interfaces based on UI components, or Angular.
In beginning, I would suggest React as it has a large developer community and is also a bit easy to understand.
You will also need to learn about making API calls, so learn about rest APIs and postman.
Also, learn how to format the JSON you will get from the backend.
After that, you can work on learning Redux(state management tool) and typescript(a superset of JavaScript ).
TO SUM UP THE ROADMAP :
HTML
CSS
REACT/ANGULAR
REDUX
API
TYPESCRIPT (OPTIONAL)
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What is a "NodeJs project"? How would you describe a node project to a person that is moving to learn nodeJs? Or, at a job interview, for example, if someone asked you this question, how would you reply? How would you describe a "node project"?
A node project is any program that is built to run on the node.js Javascript engine and use its built-in runtime library. It could be a simple one file script to carry out some sort of local scripting operation or it could be whole directory hierarchy of script files and installed modules designed to be a clustered server running a website at scale or anything in between.
node.js itself is a very flexible development environment that can be used to create a wide variety of programs. It's somewhat analogous to Python (though obviously a different language) in that it comes with a language interpreter, a runtime library of built-in functionality and a community of modules (most of which are open source) that you can add in to your project.
If you're hoping to seem node.js-proficient in an interview and don't even know the answer to this already, then you have a lot of additional studying to do because a few simple followup questions about the relevant strengths of node.js compared to other environments or a few quick programming questions about the node.js environment would likely quickly show the limitations of your knowledge.
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What advantages we will get if we use MEAN.js framework over our homegrown MEAN packaging? we are not going to use angular.js (A part of MEAN.js)
Will we face any API versioning issues? Will there be any issues related versioning of packages in MEAN?
Is it really complex to use MEAN.js as compared to creating own structure to use manage APIs, etc.
I was trying to create custom MEAN stack myself, but it was only a matter of time when i realized, that MEAN is not only MongoDB, Express, Angular and Node. Just look at node modules to see how many additional things there are. Authorization(passport.js), connectors, parsers, test libraries, mailer, promieses, etc. When i was starting I didn't find these tools useful, but now I would add most of them to my custom MEAN. Thats why I use MEAN.js stack
We can't possibly know whether your configuration will work better than MEAN.js because we know neither your needs, nor your configuration. MEAN.js provides an API out-of-the-box and supports scaffolding (via yeoman) which generates files and code with a single command. I am not a huge framework enthusiast in general, but I have to admit that development became much more easier and enjoyable since we switched to MEAN.js (ditching our own custom MEAN stack).
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I've heard that node.js is really fast for applications like chats and real time apps.
I was wondering if node is a good choice to develop a forum or a q&a site like StackOverflow?
Yes it's perfectly possible, you don't have to implement your own web server like somebody said, you can just create it using something like Express (as a framework) and Mongoose (as a MongoDB ORM) or whatever you choose.
I think Node.js is a good solution for such a case because of its high concurrency (and Stack Overflow is a site where thousands of users are online in the same time probably). So yes you can achieve this with PHP, Ruby and Python etc, but I believe Node.js is a better fit (that's my opinion, based on the success stories I've heard which were based on Node).
Node isn't just a solution for building small services, here are some good examples ( https://nodejs.org/en/blog/uncategorized/an-easy-way-to-build-scalable-network-programs/ ).
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What are your experiences with Node.js XMPP client libraries? What do you recommend?
I would highly recommed node-xmpp, which is the most idiomatic library available for Node, in that each connection is an EventEmitter which emits events in a similar manner to the built in modules.
If you are coming at Node from a browser-based background, the way stanzas are constructed is identical to Strophe.js, which minimizes the learning curve.
As you venture further into XMPP territory, node-xmpp is also a great way to write components. And its architecture is clean enough that there is even an xmpp-server project being built on it.
Finally, I'm also developing Junction, which is a suite of XMPP middleware, similar in style to what Connect/Express offers for HTTP. I'm currently building out examples and additional documentation, but the source code has full API docs, and I think its a solid framework, particularly if you are incorporating various XEPs into your client/component.
If you are trying to build a bot for Google Talk, I would suggest using https://github.com/simple-xmpp/node-simple-xmpp
Node-xmpp did not work for me while connecting with google's servers.