Develop Reference

how do i import github repo code into mt client side-js?

im trying to import github repository(public) named zipcelx into my client side js , and all i see is an option to download it from npm(which i also cant understand- would be glad if someone could explain how a module that suppose to be used on the client side could be helpfull with npm)
ive just tried to require it on a script tag as a cdn, and the source code contains a bouch of "import" methods, which i cant understand also...
this is the github repo : https://github.com/egeriis/zipcelx/wiki/How-to-use
it will be great if someone could explain this whole idea
much thanks!

Hi you can use npm command like this
npm i https://github.com/egeriis/zipcelx/tarball/master
Forturnately you can also set it on your package json
dependencies:{
"zipcelx": "https://github.com/egeriis/zipcelx/tarball/master"
}
so normal npm install will work

Add NodeJS backend code to an Angular-seed based project

I recently abandoned the awesome LAMP solution for Node/AngularJS and I have some serious (and noob) difficulties to begin.
I took an existing AngularJS project based on Angular Seed and I didn't figure out how can I add some backend javascript code.
In online tutorials, I always find an app.js file, in which there is some "requires" and where I can add an extra server code. To launch this kind of project I have to node app.js
In my Angular-seed based project, there is only a package.json that contains script commands.
Also, I noticed that to launch it, I have to npm start.
Where can I put my NodeJS code in this project ?
Thanks in advance !

Usually you will have two differents projects. The backend (Nodejs) and the frontend (Angular). You can expose your backend logic using a public API that your frontend will use. For example you can expose a REST API using nodejs with help of express. I recommend you to take a look at swagger that can help you to define your api.
After that using your angular app you can send different requests to that API and consume the info that receive from it.
To sum up you will have two different projects. Hope this helps

How to make a config.yaml and write to it with the help of node.js?

The title pretty much says it all. I just want to save data and access it anytime I want. JS-Yaml is very good for parsing yaml but the thing is that I also need to know how to make a config and write data to that yaml + get that data. Thanks

If you are using node js, there are plenty of libraries available to read and write yaml file
You can try using: https://www.npmjs.com/package/node-yaml
npm install --save node-yaml
It has functions for open, parse and write yml files. Also I like the documentation

How to connect node.js to mysql and wamp/xampp server?

I'm a PHP programmer and currently working with WP, CI, OC.
I am absolute beginner of node.js, want to know how to connect MySql and WAMP/XAMPP in step by step method.
If I am going to live it, then what will be the live server setup.
Please let me know in step by step method.

Follow this tutorial.
Tutorial Here
To use node.js you need to install the packet manager NPM and use it to install the dependencies of your project.
In the example tutorial I posted above hes uses NPM to install all his dependencies to connect to mysql just as you requested. He also provides sample code.
Good luck!
Here is another few tutorials you might follow,
Click Here
This uses mongoDB instead of mysql but following this tut will help you get things running quicker then you can find something to help with mySQL.
Click Here
After installing npm with the tutorial right above here and you check and make sure you have npm installed then follow this youtube tutorial to get mysql set up with node.
And here is a youtube video.
Click Here

It might help to use this package Node Mysql Package. Also you can find the resources in the answer to this question here.

Installing a module directly via .js AKA javascript files on nodejs

I am trying to Install a module onto my nodejs.
I have researched for tutorials to install modules, but only managed to find easy-made methods of installing via the command prompt.
I require to install the following module : https://gist.github.com/1510680 (which are javascript files). But as im new to node and all, I have no idea how to do so.
I have been searching for quite some time and I really appreciated if someone could provide a extremely lay-man guide and it would mean so much to me if someone could give me a dummy-prove step by step guide to 'install' this module ( I have never installed any module before, only recently stumbled into the world of node js and still exploring ) Help is appreciated and thanks so much.

Take a look at the node API docs. I've linked directly to the section on modules, and it includes most of what you need to know.
In a nutshell, though, you include external scripts by calling require(...). If the JS file you want is already in common.js form, you can simply save the file in your project folder, and use it by assigning the results of a require call to a local variable. For example, to use the SimpleCluster module you linked to, you would add the following line to your main script:
var SimpleCluster = require('./SimpleCluster.js')
The above will instantiate the file "SimpleCluster.js" found in the current directory, and anything that it exports will be accessible through your local SimpleCluster variable. Since the gist that you linked to is in common.js format, the above should work for you without needing to modify SimpleCluster.js.
If you need more information, I'd recommend starting with nodebeginner.org. While the above advice should be sufficient to get you started, it can be brittle. If you go through Manuel Kiessling's little book (and you can read all of it online, though I'm sure he'd appreciate it if you bought it), you'll get an intro to node's package manager, NPM, which is the preferred way of handling dependencies.