Update Node.js on Mac OS

Well for quite sometime I was using Node v 0.12x on my system, whereas nodejs has been updated to 7.x till date
I thought I used the right commands but the updates were never reflected

Gladly, I found this article on web.

I am writing down the steps that worked for me (it seems XAMPP on mac adds on some steps to the installation procedure) :

A simple way to upgrade Node.js from the Terminal is to use the n version manager:

1 npm install -g n
2 npm cache clean -f

Now, if you have XAMPP installed on your Mac, you need to do an extra step before upgrading Node.js:

1 cd /Applications/XAMPP/xamppfiles/bin
2 sudo mv HEAD _HEAD

At this point upgrading Node.js is as simple as:

1 sudo n stable
2 npm update -g

For XAMPP users only, rename _HEAD back to the original HEAD:

1 cd /Applications/XAMPP/xamppfiles/bin
2 sudo mv _HEAD HEAD

You can check which versions of npm and Node.js you have on your system with:

1 node -v
2 npm -v

Cheers!

Solution : Cordova Jquery Ajax calls not working @Android4.x

On Cordova 5.x , for the android platform a plain ajax call does not work

It does not give any detailed error

readystate: 0
status : 0
errortext : error

__________________________________________

Solution:

Things are changing.

After doing research on the issue and trying out different options, I came across this.

1. You need to install the cordova whitelist plugin (this is not available for ios currently though)

cordova plugin add cordova-plugin-whitelist

2. In config.xml

 

in place of the old, tag.

And bam, all the ajax calls are working properly.

Note: You will need to add the following to your html files in the section.

<meta http-equiv="Content-Security-Policy" content="default-src *; style-src 'self' 'unsafe-inline'; script-src 'self' 'unsafe-inline' 'unsafe-eval'"/>

else you will get the following error message while running the app.

“No Content-Security-Policy meta tag found. Please add one when using the cordova-plugin-whitelist plugin.”

Hope it helps somebody facing similar issues.

Diving into Angular JS – Installation Windows 8

So this time its Angular JS, something new I am trying to learn

The current instructions are for installing angularJS on Windows 8/8.1 platform (may also work on windows 7, however not tested)

Dependencies Installation :
I had some of the dependecies already installed like Git, Java, Node.JS.

We will be using Grunt as our build system. For installing Grunt :

npm install -g grunt-cli

We will be using Bower to manage client-side packages for the docs. For installing Bower :

npm install -g bower

 

Then I forked the github account at https://github.com/angular/angular.js

 

Building AngularJS

To build AngularJS, you clone the source code repository and use Grunt to generate the non-minified and minified AngularJS files:

Open command prompt with administrator privileges (right click, run as Administrator)(Note: This is because grunt package creates some symbolic links)

# Clone your Github repository:
git clone "git@github.com:<your-github-username./angular.js.git"

# Go to the AngularJS directory:
cd angular.js

# Add the main AngularJS repository as an upstream remote to your repository:
git remote add upstream "https://github.com/angular/angular.js.git"

# Install node.js dependencies:
npm install

# Install bower components:
bower install

# Build AngularJS:
grunt package