Learning Bootstrap Part 3: Working with Image and Icons

Read Part 1 here: Getting started with Bootstrap

Read Part 2 here: Working with Buttons

Working with images are very essential of web application development and Boot strap also realize this. If you want to create rounded image, circled images or Polaroid image then that is as easy as adding a class.

You can create a circled image as following

image

Circled images will look like following

image

You can create round corner images as following,

image

Rounded image will look like following

image

You can create Polaroid image as following,

image

Polaroid image will look like following ,

image

You can create different types of images as following


<!DOCTYPE html>
<html>
<head>
 <title></title>
 <script src="Scripts/jquery-1.7.1.min.js"></script>
 <link href="Content/Site.css" rel="stylesheet" />
 <!-- Bootstrap references -->
 <script src="bootstrap/js/bootstrap.min.js"></script>
 <link href="bootstrap/css/bootstrap.min.css" rel="stylesheet" />
</head>
<body>
 <div class="container">

 <img src="Images/uk.jpg" class="img-polaroid"/>
 <img src="Images/indiaflag.jpg" class="img-circle"/>
 <img src="Images/deepika-paduk.jpg" class="img-polaroid" />

 </div>
</body>
</html>

It is very easy to work with Icons also in Bootstrap. Bootstrap supports free icons from http://glyphicons.com/ for developers. There are 140 icons avialble. You need to follow following steps to work with icons

  1. Create a <i> tag
  2. Set class of <i> tag with icon name. For erxample if you want to create calendar icon then that can be created as following

image

You can add icons to buttons as following . A Search button can be created as following . We are nesting <i> tag inside button taf to create a button with icons.

image

You can create different size of button with icons as following ,

image

Above buttons can be created as following


<div class="container">
 <a class="btn btn-large">
 <i class="icon-search"></i>Search
 </a>
 <br />
 <a class="btn btn-small">
 <i class="icon-search"></i>Search
 </a>
 <br />
 <a class="btn btn-mini">
 <i class="icon-search"></i>Search
 </a>
 </div>

You can create navigation lists with icons as following

<ul class="nav nav-list">
 <li class="active"><a href="#home"><i class="icon-home icon-white"></i>Home</a></li>
 <li><a href="#"><i class="icon-gift"></i>Gift</a></li>
 <li><a href="#"><i class="icon-picture"></i>Images</a></li>
 <li><a href="#"><i class="i"></i>Misc</a></li>
 </ul>

And you will find navigation bar created as following,

image

In this way you can add icons to any other elements. Bootstrap makes working with icons and images very easy. I hope you find this post useful. Thanks for reading.

Learning Bootstrap Part 2: Working with Buttons

Read Part 1 here: Getting started with Bootstrap

Buttons and anchor tags are very important controls. Bootstrap allows you to customize look of these two very elegantly.

Block level Button: if you want to create a button as the full width of parent container that can be easily created as following


<div class="container">
 <button class="btn btn-large btn-block" type="button">Login</button>
 <button class="btn btn-large btn-block" type="button">Register</button>
 <button class="btn btn-large btn-block" type="button">Twitter</button>
 <button class="btn btn-large btn-block" type="button">Facebook</button>
 </div>

In above we are putting buttons inside fixed container and you will see buttons would rendered as following. Buttons are taking width of parent div container.

clip_image002

There are different styles of buttons available. You can very easily create them. Let us say you want to create a Success Button. Success button can be created by setting class as btn-success

image

If you want to create Info button then that can be created setting button class as btn-info

clip_image001

Different kinds of buttons available in bootstrap is as following,

image

You can create above buttons as easily as given below


<!DOCTYPE html>
<html>
<head>
 <title></title>
 <script src="Scripts/jquery-1.7.1.min.js"></script>
 <link href="Content/Site.css" rel="stylesheet" />
 <!-- Bootstrap references -->
 <script src="bootstrap/js/bootstrap.min.js"></script>
 <link href="bootstrap/css/bootstrap.min.css" rel="stylesheet" />
</head>
<body>
 <div class="container">

 <button class="btn btn-large btn-primary" type="button">Primary Button</button><br />
 <button class="btn btn-info"
 type="button">
 Info Button
 </button>

<br />

 <button class="btn btn-success"
 type="button">
 Success Button
 </button>

 <br />
 <button class="btn btn-large btn-warning" type="button">Warning Button</button> <br />
 <button class="btn btn-large btn-danger" type="button">Danger Button</button><br />
 <button class="btn btn-large btn-inverse" type="button">Inverse Button</button> <br />
 <button class="btn btn-large btn-link" type="button">Link</button> <br />
 </div>

</body>
</html>

Bootstrap also provides you different sizes of buttons. If you want to create a large button that can be created as following

clip_image001[6]

You can create a large success button as following

clip_image003

There are three buttons sizes available,

  1. Large button : btn-large
  2. Default button : btn
  3. Small button : btn-small
  4. Mini button : btn-mini

image

Above buttons can be crated with following mark-up


<!DOCTYPE html>
<html>
<head>
 <title></title>
 <script src="Scripts/jquery-1.7.1.min.js"></script>
 <link href="Content/Site.css" rel="stylesheet" />
 <!-- Bootstrap references -->
 <script src="bootstrap/js/bootstrap.min.js"></script>
 <link href="bootstrap/css/bootstrap.min.css" rel="stylesheet" />
</head>
<body>
 <div class="container">
 <button class="btn btn-large ">
 Large Button
 </button> <br />
 <button class="btn">
 Default Button
 </button> <br />
 <button class="btn btn-small">
 Small Button
 </button> <br />
 <button class="btn btn-mini">
 Mini Button
 </button> <br />

 </div>

</body>
</html>

In this way you can work with buttons and make them immersive using twitter bootstrap. In further posts we will get into more deep into bootstrap. I hope you find this post useful. Thanks for reading.

Learning Bootstrap Part 1: Getting started with Bootstrap

What is Twitter Bootstrap ? Well, I will answer this question in further posts. In this post I am focusing on getting started with Bootstrap and I will show you how easy it could be to make your web applications more immersive using bootstrap.

Let us start with downloading and installing Bootstrap. You can download that from here

clip_image002

After downloading unzip the folder and you will find following subfolders inside that. Folders name are very much self-explanative. CSS files are in CSS folder and JS files are in JS folder.

image

Next you need to add bootstrap files in project structure. In Visual Studio folder structure should look like as following

image

Now a typical HTML file looks like following,


<!DOCTYPE html>
<html>
<head>
 <title></title>
 <script src="Scripts/jquery-1.7.1.min.js"></script>
 <link href="Content/Site.css" rel="stylesheet" />
</head>
<body>

 <h1>Bootstarp Sample</h1>
 <div>I am here to decide about my Ideas ! Okay ?</div>

</body>
</html>

HTML will render without bootstrap as following,

image

You can add bootstrap CSS and JS references in the same way we add usual CSS and JS reference.

image

After adding references of bootstrap CSS and JS HTML should look like following.


<!DOCTYPE html>
<html>
<head>
 <title></title>
 <script src="Scripts/jquery-1.7.1.min.js"></script>
 <link href="Content/Site.css" rel="stylesheet" />
 <!-- Bootstrap references -->
 <script src="bootstrap/js/bootstrap.min.js"></script>
 <link href="bootstrap/css/bootstrap.min.css" rel="stylesheet" />
</head>
<body>

 <h1>Bootstarp Sample</h1>
 <div>I am here to decide about my Ideas ! Okay ?</div>

</body>
</html>

&nbsp;

Now we have added bootstrap CSS and HTML will render as following. You can notice the difference typography and the way H1 and DIV elements are rendering now.

image

Now let us see that how easy it is to differentiate different kind of message in bootstrap. For example if we want to show an error message that can be done by setting class of a paragraph.

image

In the same way an info message can be displayed as following,

image

We can show different kind of messages in application as easily as depicted in following HTML


<!DOCTYPE html>
<html>
<head>
 <title></title>
 <script src="Scripts/jquery-1.7.1.min.js"></script>
 <link href="Content/Site.css" rel="stylesheet" />
 <!-- Bootstrap references -->
 <script src="bootstrap/js/bootstrap.min.js"></script>
 <link href="bootstrap/css/bootstrap.min.css" rel="stylesheet" />
</head>
<body>

 <h1>Bootstarp Sample</h1>
 <p class="muted">This is muted text</p>
 <p class="text-warning">This is warning text</p>
 <p class="text-error">This is Error !</p>
 <p class="text-info">This is Info !</p>
 <p class="text-success">This is sucess message !</p>
</body>
</html>

And different kind of message will render as following,

image

Let us take another example of table. You can create a table a with some rows as following,

<table>
 <tr>
 <td>Dhananjay Kumar</td>
 <td>@debug_mode</td>
 </tr>
 <tr>
 <td>John Bristowe</td>
 <td>@johnbristowe</td>
 </tr>
 <tr>
 <td>Chris Eargle</td>
 <td>@kodefuguru</td>
 </tr>
 <tr>
 <td>Pinal Dave</td>
 <td>@pinaldave</td>
 </tr>
 </table>

&nbsp;

On rendering above HTML in browser you will get table as following. Certainly this table is not looking very immersive.

clip_image001

Using bootstrap we can style table as easily as setting class value. If you set class of table as table then table will stretch to all width available.

clip_image002

And you will notice the way table is rendering.

clip_image004

If you want strip table that can be done by just setting class value. A stripped table can be created in bootstrap as following,

clip_image005

As output table will render as given in below image,

clip_image007

Full source code of above stripped table is as following,


<!DOCTYPE html>
<html>
<head>
 <title></title>
 <script src="Scripts/jquery-1.7.1.min.js"></script>
 <link href="Content/Site.css" rel="stylesheet" />
 <!-- Bootstrap references -->
 <script src="bootstrap/js/bootstrap.min.js"></script>
 <link href="bootstrap/css/bootstrap.min.css" rel="stylesheet" />
</head>
<body>

 <h1>Bootstarp Sample</h1>
 <table class="table table-striped">
 <tr>
 <td>Dhananjay Kumar</td>
 <td>@debug_mode</td>
 </tr>
 <tr>
 <td>John Bristowe</td>
 <td>@johnbristowe</td>
 </tr>
 <tr>
 <td>Chris Eargle</td>
 <td>@kodefuguru</td>
 </tr>
 <tr>
 <td>Pinal Dave</td>
 <td>@pinaldave</td>
 </tr>
 </table>
</body>
</html>

In this post we focused on getting started with bootstrap. In further posts we will get into details of other aspects of bootstrap. I hope you find this post useful. Thanks for reading.

Flip Image on hover using CSS 3.0

In this post we will take a look on flipping images using CSS3.0. Let us assume that we have a div with two images as following,


<div id="flipimagediv">
 <img id="backImage" src="images/srt.jpg" />
 <img id="frontImage" src="images/msdhoni.jpg" />
 </div>

Now we want to flip these two images on mouse hover. We will achieve that using CSS3.0. To start with let us set container div style. In container we are setting width, height and display.


#flipimagediv {
display: inline-block;
width: auto;
height: auto;
position: relative;
}

After setting container div styles let us go ahead and set image styles. In image style we are setting usual properties like height and width. We are setting

  • transition-property
  • transition-duration
  • transition-timing-function

#flipimagediv img {
width: 400px;
height: 300px;
position: absolute;
transition-property: opacity;
transition-duration: 3s;
transition-timing-function: linear;
}

Last we need to change opacity of images on hover. We can do that  as following.


#flipimagediv #frontImage, #flipimagediv:hover #backImage {
opacity: 1;
}
#flipimagediv:hover #frontImage, #flipimagediv #backImage {
opacity: 0;
}

In this way we can flip images on hover using CSS 3.0. I hope you find this post useful. Thanks for reading.

Two common tasks using jQuery

In this post we will take a look on how to perform two common tasks using jQuery . We will see how following tasks can be performed,

  1. Reading and setting text of label
  2. Reading value of selected item from drop down

Reading and setting text of label

Let us say you have label on HTML as following,


<label id="locationbox"> </label>

You can read value as following ,


var valueoflabel = $('#locationbox').text();

You can set text in label as following,


$('#locationbox').text("MyText");

Reading value of selected item from drop down

Let us say you have drop down as following on html,


<select id="typeofreport">
<option value="Rape">Rape</option>
<option value="EveTeasing">Eve Teasing</option>
<option value="Molestation">Molestation</option>
<option value="VerbalAbuse">Verbal Abuse</option>
<option value="Harassmentatwork">Harassment at work</option>

</select>

You can read text of selected value of drop down as following ,


var typeofincident = $("#typeofreport option:selected").text();

These are the two tasks I wanted to share with you. I hope you find this small blog post useful. Thanks for reading.

Creating a round button in CSS 3.0

In this post we will learn creating a round button in HTML 5 and CSS 3.0. Let us say we have a HTML button as following,


<!DOCTYPE html>
<html>
<head>

<link href="demo.css" rel="stylesheet" />
<title>
Round Button Demo
</title>

</head>
<body>

<button>Push Me</button>

</body>
</html>

At this point if you render above HTML in browser, button would be rendered as following,

image

We can make this button a round button using CSS 3.0. By setting value of border-radius to 100% , you can make a button round.


button {
height: 200px;
width: 200px;
border-radius : 100%;
background-color: #C91826;
}

At this point if you render above HTML in browser, button would be rendered as following,

image

You notice here is that text on button is not that immersive. We can make that more immersive by setting other CSS attributes as following,


button {
height: 200px;
width: 200px;
border-radius : 100%;
background-color: #C91826;
color: #fff;
font-weight: bold;
font-size: 40px;
text-decoration: none;
text-align: center;
text-shadow: 0px -1px 0px rgba(0,0,0,0.5);
margin-left : auto;
margin-top : 30px;
margin-bottom : 40px;
margin-right : auto;
border: 1px solid;
border-color: #B21522;
border-radius: 100%;
-moz-border-radius: 100%;
-webkit-border-radius: 100%;

}

At this point if you render above HTML in browser, button would be rendered as following,

image

In this way you can create a round button in HTML5 and using CSS 3.0. I hope you find this post useful. Thanks for reading.

Arrays in JavaScript

In JavaScript Arrays are an object. You can create Array is JavaScript as following

 

image

An array element can be accessed using its index. For example if you want to read banana, you will read that as following,

 

image

Likely Array of other languages, JavaScript array index also start from zero. The other way to create JavaScript array is by using the new keyword.

 

image

You can read elements of array using for loop as following,

image

You will get following output. You will notice that value of the 5th element in array is undefined since we have not set the 5th element value.

 

image

Even though you have set the size of the array as five, you can dynamically increase size of the array. In below listing we are setting value of 10th element. After setting 10th element value size of the array has been increased from 5 to 10.

 

image

Since we have not set values from 5th element to 9th element, so those value will be undefined

 

image

Following are the most used functions of JavaScript Array.

 

image

Let us explore each functions one by one.

Push Function

Push inserts an element at the top of the array. Suppose we have an array

 

image

When you see the console , you will find array elements as following

 

image

Now let us push some elements in fruit array . We can push element in the array by calling push function and passing the elements to be inserted as input parameter. In following listing , we are inserting orange and apple in the array. First orange will be inserted then apple.

 

image

And as a output you will get array elements as below,

image

Pop Function

Pop function is used to remove top or last element of the array. From above array we can pop an element as given in below listing

 

image

You will find that banana has been removed from the array

image

unshift Function

unshift function inserts elements in the beginning of the array. Let us suppose we have an array

image  

You can insert elements at the beginning of array using unshift as following

image

You will find that orange , apple and grapes has been added to the fruits array . Now the first element of the array is grapes.

 

image

shift Function

shift function removes first element from the array. Let us consider this array

 

image

when we call shift function on array mango will be removed from the array

image

You will get array elements printed as following

image

In further post we will discuss more JavaScript Array functions.  I hope you find this post useful. Thanks for reading.