What is Gulp and Grunt

Front-End Developers Tend To Deal with many things that include : - 

• Decrease http request by concatinating CSS FIles and JS Files Together for showing on website
• Compressing and Minifying CSS and JS Files
• Optimizing Image to reduce their size by maintaining Quality of image
• Saas authoring
• Rendering DOM 

This is just an overview of task that needs to be run there is large list of tasks needs to be done . Grunt and Gulp are tools that does these tasks for us and don't bother us to do them . After setting up Grunt or Gulp all these list of tasks can be done automatically without bothering you about any of them and everything managed automatically and efficiently

Why Do I Need Gulp Or Grunt

Things that gulp and grunt do are not that you can't do without gulp and grunt . There are number of tasks you need to do you can also manually do all of them manually using number of availale tools But Gulp and Grunt Has kept them all under one roof and you manually need not to do anything it automatically do all these tasks and manages everything

Do I Need To Learn NODE For Using Gulp / Grunt

You just need to install node and not need to do anything more . Like we use mailing platform gmail or We use wordpress for blogging but don't do coding in that on non-developer part

Working of GRUNT

Grunt runns tasks using Temporary files which are disk I/O operations. Your SASS file is compiled and then written to a temporary file. The temporary file is used by the autoprefixer and then the final product is written to the destination file.

Working of Gulp

Gulp runs task all in main memory. Your SASS file is compiled in main memory, then the result is passed to the autoprefixer without being written to a file and the destination file is then written out.

Difference Between Bower and NPM

• Npm and Bower are both Project dependency management tools. But the main difference between both is npm is used for installing Node js modules but bower js is used for managing front end components like html,css,js etc.

• npm is most commonly used for managing Node.js modules, but it works for the front-end too when combined with Browserify etc

• Bower is front-end Package Manager. The biggest difference is that npm does nested dependency tree that increases its size eventually while Bower requires a flat dependency tree No nested versioning of Packages

NESTED DEPENDENCY TREE
A nested dependency tree means the dependencies or Packages we added in our project can also be dependent on other dependencies and those can further have more dependencies and so on. This is not a problem for a website where you does not care about space and performance of application . It tells you need to care about dependency conflicts as all your dependencies use their own version of Underscore.This increases size and make heavy load for pages. Imagine a site having to download three copies of jQuery as due to different packages require different version of jquery

The reason many projects use both is that they use Bower for front-end packages and npm for developer tools like Yeoman, Grunt, Gulp, JSHint, CoffeeScript, etc.

SEPARATE PACKAGE DEPENDENCY APPROACH
The main difference between npm and Bower is the approach for installing package dependencies. npm installs dependencies for each package separately, and as a result makes a big package dependency tree (node_modules/grunt/node_modules/glob/node_modules/...), where there could be several version of the same package. For client-side JavaScript this is unacceptable: you can't add two different version for jQuery or any other library to a page. With Bower each package is installed once (jQuery will always be in the bower_components/jquery folder, regardless of how many packages depend on it) and in the case of a dependency conflict, Bower simply won't install the package incompatible with one that's already installed.

What is Bower And Why To Use Bower

Websites are made up of number of Things That include - Framework , Libraries , HTML , CSS , Javascript , Fonts, Images etc

To Keep Track of All These Packages and Making Sure they are up todate is not an easy thing . Bower act as an rescue for us

BOWER IS A FRONT-END PACKAGE MANAGER

Bower Do the Work of Installing and Updating Project Dependencies . That Includes Libraries that project uses like jquery etc .What it does is to go To All Library Websites Downloading the packages Unpacking them and place them in project folder so that project can use them and all of this is done use some set of commands.

Bower Help Us To Manage Components like HTML, CSS , Javascript ,fonts , images etc . Bower Just tries to maintain Version of the package as per our Dependency and Need For the Project as specified .

Bower Contains a File 'Manifest File' - bower.json This file is used by bower to keep track of managing packages . It work by fetching, saving , installing package from web and update them in bower.json

Getting Started With Bower

Complete List Of Bower Commands
https://bower.io/docs/api/

How To Install Bower

In Order to Install Bower You Need To Install NPM . The best way to install npm is to install node using the node.js installer. npm is installed as part of node.

Download NPM 

If you are using Linux Use Command Below to install NPM
sudo npm install npm -g

After Installing NPM Install Bower By Using Command Below
npm install -g bower

Intalling Packages Using Bower

$ bower install <package>

After Execution of this command bower_components folder will be create and all packages will reside under this folder

Bower Example

> bower install --save jquery # or bower i -S jquery

This command will download the latest version of jQuery into the bower_components/jquery folder.

Sample bower.js File

# installs the project dependencies listed in bower.json
$ bower install
# registered package
$ bower install jquery
# GitHub shorthand
$ bower install desandro/masonry
# Git endpoint
$ bower install git://github.com/user/package.git
# URL
$ bower install http://example.com/script.js




How To Generate Google Maps API Key

While Loading Web Page with Google Maps You May Suddenly Suffer with Javascript Error Below

Google Maps API error: Google Maps API error:

MissingKeyMapError

1. Click on Link Below and After Link is Opened Click on 'Get A Key' Button
   https://developers.google.com/maps/documentation/javascript/get-api-key#get-an-api-key
   
   
   
2. After Click on Get A Key you will be presented with Terms Of Use . You Must Need to Agree In order To Get A Key so No More Options Click on 'Agree and Continue' Button
   
   
   
   
3. Choose Name of Key . Then Specify Website From where Google Maps API Will Be Accessed . Then Click on Create Button .
   
   
   
4. Now You Will Be presented with API Key . Note down the key and Click on Ok Button
   
   
   
5.  Open file which contains Google Maps script code Then add you API Key to end of  Google Maps JS file as Below 
   <script src="//maps.googleapis.com/maps/api/js?key=YOUR_API_KEY" async="" defer="defer" type="text/javascript"></script>
   
6. In Above Script Tag you need to Replace "YOUR_API_KEY" with Key you obtained in Previous Step
   
7. If you are not having "YOUR_API_KEY" Parameter then add an paramter as above <Script> Tag Above
   
8. You API Key will be Ready To Use in 5 Minutes Maximum

Google To Train two Million Mobile Developers in India

Tech Giant Google on Monday launched "Android Skilling and Certification" programme to Help India To Produce High Quality Skilled Mobile Developers in India

This Programme Will Cover "Two Million" People and They Will Be Compiled To Skilled Mobile Developers and They will at Runtime By Making High Quality Android Apps . Through This Programme Google is Targetting Both talented Students as well as Mobile Developers To Train Them For Android App Development

As Caesar Sengupta, Vice President (Product Management) at Google Said Today -

"With nearly four million developers, India is expected to have largest developer population globally by 2018. But today, only 25 per cent of them are building for mobile"

Caesar Sengupta Told Reporers on Monday - "India is uniquely placed to innovate and shape the internet experience of billions of users who are currently online or will come online in future"

Google also lauched instructor-led training programme on Android fundamentals to provide person training to students studying in all Indian universities Including Private as well as Public Universities and Training Institutes of National Skill Development Corporation of India . This Course will be Available to All of Them Without Any Cent  TO NTPEL . It will available to them as part of 'Mobile Computing' Course Starting From July 18

Google Has also Launched Android Certification Program "Associate Android Developer Certification"  that will help candidates to get Starter Android Developer Job . You Can login to Google Developer Training Website and Take Exam . Fee for Exam is Rs 6,500/-

Google will also open-source all Android Developer Fundamentals practicals and courseware and make these available to everyone for free.