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Can anybody explain me what is the difference between LAMPP and METEOR js framework?
Thanks in advance.
There is quite a big difference between the two.
LAMP:
This is a stack that originally (and still largely) stands for Linux Apache MySQL and PHP
The alternative of windows is called WAMP.
The linux part is the system the stack is running on; Apache is a server system where you can store and access your websites and apps; MySQL is the type of database(Relational Database); PHP is the server-side language you use to create these dynamic sites (you can also use python or perl).
The community is much larger and you can get support everywhere as it has been around longer than Meteor
If you run a linux os, you can literally download the apache server and host it on your computer see: http://httpd.apache.org/
Meteorjs
Meteor is a full stack platform that allows you to write all your code in Javascript. This means you can write the front end in Javascript, then turn around and also write the server/backend using the same JavaScript! Literally write once, run everywhere
Meteor allows you to write an app in very short amount of time as you are using just javascript.
-What really makes Meteor stand out is their "realtime" way of doing things. With mete0r, everything is reactive. When a change happens in the server, it is immediately reflected on the front-end without refresh or waiting at all!
Meteor apps come with Mongodb (NoSQL) already set up as your database system as opposed to MySQL used by LAMP. Meteor goes the extra mile by also creating a small database in the front end of your app and whatever changes you make are performed in this mini-mongo database which automagically synchronizes with the server and updates it. METEOR DOES ALL THIS FOR YOU.
-Learn more at https://www.meteor.com/ and this https://www.youtube.com/watch?v=RpQTPWvD6HA offers a great intro.
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I am looking to build a Order Management and Task Management App for my company. I am a beginner in Programming and know only Javascript (Can manage with HTML and CSS ) . This app would also require to connect with a database. Is it possible to build it only using Javascript (without the use of any other languages like PHP etc) and is it advisable. Is there any other more feasible solution.
If Javascript will suffice, a few more queries in the same line
What database would be the best to use ?
Would using Angular JS help ?
How do I search and use if theres a similar project in Github that runs only on Javascript ?
suggest you read more about the MEAN stack, it's a very popular stack that let you build the whole stack (DB, Server side logic, Client Side logic) with Javascript alone.
in short:
MongoDB, a NoSQL database
Express.js, a web application framework that runs on Node.js
Angular.js, a JavaScript MVC framework that runs in browser JavaScript engines
Node.js, an execution environment for event-driven server-side and networking applications
using the angular JS is optional in my opinion, it is required if you want to make it to feel as single page app.
try this on github, an example for MEAN stack.
You have to Choose
Nodejs Server (Javascript)
AngularJS Client (Javascript )
Mysql Backend
They are More Flexible with friendly Solutions
You could build and host your app on something like https://firebase.google.com/ - build the entire thing in eg polymer and let google host it, that way you'd be building the thing entirely in JS, no other language required
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I wrote an application which connects to a MySQL database and queries/adds/deletes data in Qt Framework. I want to convert to a web application run inside a browser. I have some experience in PHP and I could code the whole app in it, but I have a problem: I would be forced to reload the page every time when I want to do something with the database. I want to make something like Facebook/GMail/Facebook Messenger where accessing a database is achieved without reloading the whole page. This is the part which I never done before.
I have some questions about this:
What are the JavaScript libraries out there which I could use?
What is the appropriate way to do this: create a backend which is between the web app and the database, or connect to the database directly?
I don't necessarily need to stick to that languages, I'm open to new technologies, programming languages.
Edit:
Based on suggestions and my own research I found two technologies which I think I could use: AJAX and PHP(thanks to Hugo Dias) or NodeJS. I didn't wrote any code yet, so which of them would be better for my app? A little more information: this app will used by only the small number of users at the same time, like max 10.
You need to use a web server, for eg. Apache Tomcat. If you want to keep your code in c++, you could convert it into a CGI. Otherwise, you can use java servlets or JSP along with JDBC. You can set it up so that when a button is clicked the CGI script is triggered and the database queries are run.
Short answer:
Yes,there are libraries that helps you with that.
JQuery and PrototypeJS are some of them.
There are some ways of do this, but in any way,you need of a Backend. It's inherent in architecture of Web(Client-Server).
Long answer:
Yes,there are ways of do that. What you're looking for is called AJAX(and stands for Asynchronous JavaScript and XML).
AJAX is a technics that gathers some technologies like XHR and Javascript, mainly.
It allows you work with asynchronous requests,what basically lets you update your page without reload it.
You'll find extensive documentation here about it,and here a simple example with PHP.
The architecture of App is of your choice. Under the Client-Server architecture,you can apply what is best for you,since a monolithic system until a MVC or MVVM pattern.
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Well, perhaps this is silly but I wonder is it possible, to transfer a web app built in Javascript with some html and css to linux platform?
I made a youtube player smth like youtube client, and I want to use on my Ubuntu 15.04 OS, as an app.
Here is a preview:
and I would love it if it would look smth like this:
I know that this Google Mail is just loaded from a web, but I want to make it accessible from my Ubuntu. Just instead of this google I ant that my app gets in. I hope you understand...
As has been pointed out, JavaScript and HTML5 don't "natively" run on Linux -- so you'll have to find an application to wrap yours. Plenty of these things exist -- Electron is very popular, as is nw.js.
Well, I'll try to take a stab at answering your question:
If you want to run it natively on linux without any other application being involved the answer to your question is not without rewriting it to some other language. Linux does not run javascript natively.
If you want something thinner then a web browser perhaps something exists to run your web app for you, but it's essentially going to be a light web browser. If you want to run javascript there will always be some other application between you and the kernel unless the kernel specifically supports javascript which Linux does not (and AFAIK no kernel does).
So in short, based on what I think you're asking for, no.
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I've got a plan for four systems: A, B, C and D.
System A is to hold a small database which will accept information from the other three systems via HTTP requests--I'll try to implement a RESTful service here. The other systems only talk to System A.
System B and C both produce a .csv file which I need to monitor for changes and then send their contents back to system A with a timestamp. I'm afraid that while communicating back to A, a file change might be made but the system will ignore it because it's busy.
System D will be run by the client on a browser.
Is Node.js appropriate to run on systems B and C? To monitor the file changes and send some PUT/POST requests to System A? In the rare case of an update taking very long to occur on System A, will Node.js be able to send another request if it sees a file change while the first one is trying to finish? I've never used Node, but I feel like this is what it's good for. I'm willing to give it a shot.
I'm afraid that while communicating back to A, a file change might be made but the system will ignore it because it's busy.
Well worry not because node is built from its very core to be asynchronous. It's very tagline is:
Node.js® is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices.
You could certainly use other languages/platforms to solve your use-case as well, but node was practically designed for stuff like this :)
I play a game called Hearthstone and the game generates a log file of what happens as the game progresses. I wrote a little log watcher module that monitors the Hearthstone log file. This code snippet is the portion that monitors the file.
So far my app has never missed any lines in the log file since each of the file change events are queued up as changes happen. My app doesn't block while waiting for file changes and then processing them. Instead, node adds events to the queue and checks their status with each iteration of the event loop. Eventually it processes all the file change events no matter what.
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I have read this article (Uses of Javascript), while it is right I know there are other uses of javascript, modern javascript nowadays. I haven't read about node.js and how this one works but I have heard that this one makes js do server-side stuffs?
The question is, what are other uses of javascript, can this replace php and ruby? I know this might not be a good idea for enterprise applications but will work well with medium-size applications, am I right?
What are the other uses of javascript other than the one given in the article?
Javascript can very well be used server side. If you're on an IIS server, you can for example use JScript, nodejs, v8cgi (currently known as TeaJS), or a combination of these. On *nix servers nodejs is a popular framework. Nodejs can even be used to program your own webserver (e.g. using the expressjs framework).
Dive in the given links and see what's possible.
There is TESSEL and Espruino javascript inside microcontroller.
I use Node.js for web application for few years, few projects and really happy so far.
The Express.js + MongoDB makes a perfect match (exactly as PHP + MySQL, 5 years ago). You can find reference on MEAN stack.
It works good no only for small applications. We have medium-size app that could be easily scaled up.
Node.js is not to about substitute PHP or Ruby, but what's happening now is indeed, it's more and more used for web applications nowaday. The reason is simple, Node.js has "web-oriented" core, meaning it's originally created to aim highly productive tcp/http applications. With some progress beautiful web development frameworks appeared on top of Node.js that makes web application development even more easy and fun.
For me, programming Node.js on server makes a lot of sense, since JavaScript is main client-side language (almost without alternatives), so context-switching between client/server programming is less. With practice you get use to some initial JavaScript weirdness and things goes smooth and nice.