Web Development and Design | Tutorial for Java, PHP, HTML, Javascript: html

Web Development and Design | Tutorial for Java, PHP, HTML, Javascript: html
Showing posts with label html. Show all posts
Showing posts with label html. Show all posts

HTML5 Local Storage Tutorial


HTML5 Local Storage Tutorial



What is HTML5 Local Storage?

Html5 comes with new functionality to store data localy on client side machine (browser, web view app,cordova based apps) with the help of local storage we can store value in browser by (key=value) Pair .

Local Storage Can Store data Upto 5 Mb.

Local Storage Object

Local Storage has two types of Objects

1. window.localStorage – Store Data Without Any expiration datetime.
2.window.sessionStorage - Stores Data Until a Session (Data Will we lost if browser or tab will closed).

Code 1. (Check Local Storage Supported Or Not)
Here First We Will Check Local Storage is supported by Browser or not.
<html>
<head>
<script>
if (typeof(Storage) !== "undefined")
{
console.log(“Storage Supported”);
//Open Your Console By Clicking On F12 it Will print supported means your
//browser suppored local storage
//here we write our code
}
else
{
console.log(“Storage Supported”);
//browser not suppored local storage
}
</script>
</head>
<body>
<h1>Local Storage Tutorial</h1>
</body>
</html>
Code 2.(Set Value Using local Storage )
Here we will set value in local storage using local storage object.
<html>
<head>
<script>
if (typeof(Storage) !== "undefined")
{
localStorage.setItem("userame", "John");
//Set value in localstorage
//here we write our code
//username is key
//john is our value which we want to set
}
else
{
console.log(“Storage Supported”);
//browser not suppored local storage
}
</script>
</head>
<body>
<h1>Local Storage Tutorial</h1>
</body>
</html>
Code 3.(Get Value Using local Storage )
Here we will set value in local storage using local storage object.
<html>
<head>
<script>
if (typeof(Storage) !== "undefined")
{


localStorage.setItem("userame", "John");
//Set value in localstorage
var a=localStorage.getItem("userame");
document.write(“username is “ +a);
//get value from local storage
//here we write our code
}
else
{
console.log(“Storage Supported”);
//browser not suppored local storage
}
</script>
</head>
<body>
<h1>Local Storage Tutorial</h1>
</body>
</html>
Note : - Generally We Use Localstorage in Cordova based application where we store login details in app when user come again then do need to login agian we check its old value from local storage and used it login again without taking from user input.
Thank you .
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How To Create A Clickable Image or Generally know As image Mapping Using Gimp Image Editor


How To Create A Clickable Image or Generally know As image Mapping Using Gimp Image Editor

Image Mapping Or Clickable Means Creating A hyperlink in Html By click on Image By Click on Different Coordinates of area for different link in a single Image.
Lets Start.

Step 1.Open Gimp Image Editor
Step 2.Click on Filter->Web->Image Map.
Step 3.Now A New Window Open For image mapping by selecting portion of image according to its area like circle,rectangle,polygon for different areas of image link.


Step 4.Now Select Any Shape Which you want a piece of area for link then drag it after that right click on it and again a new window open give your link now you create a new link for a portion of area.




Step .Click on Save And Save you .map file open it you got coordinate for image and just use in area tag which i posted earlier on html5 Semantics.



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Start Learning Html5 Semantics in an hour.


Learn HTML5 Semantics in An Hour.

Now what is semantics?


Html5 Comes in new data element which describe what type of content,section is for that element.like Header <header> Footer <footer>,sidebar <aside> etc.




A basic HTML5 Page Example.
===================================================


<!DOCTYPE html>
<html>
<head>
<title>Demo</title>
</head>
<body>
<header>
This is the Header of our Site like for Site Title Menu
</header>
<nav>This is nav bar of our site</nav>
<aside>
This is sidebar of our site
</aside>
<section>
This is content of our site
</section>
<footer>
This is footer of our site
</footer>


</body>
</html>


This Simple page give output like this.






Since We look there is only plain text written on browser so as we all know tha html is only structure of page alignment designs and behaviour of our page control by javascript and css we will cover javascript and css in next post.


Now lets start Study more html general elements which we used and their property and default css value of their elements.


Before starting lets discuss about attribute what is attribute since every elements as has default attribute or we use custom attribute for js.


Anchor Tag (<a></a>)


<a> this is anchor tag which we used for linking our html page from one page to other
Attributes:
href : Url (e.g href=”http://google.com “ ,href=”page2.html”).
Rel : (nofollow,next,search,prev,tag,help,author) e.g rel=”nofollow” This used for nofollow the url generally used for search engines To Not follow this link.
Target : _blank - Open Link in New Tab.
_parent - Open Link in Same Window.
E.g <a href="hello.html">Link</a>


where hello.html is our next page and link is test which works as masking of link and href is a default attribute of anchor tag<a> .


Address Tag (<address></address>)
Address Tag Defines TheContact Information of an Article.The Text Inside Address Tag is Render in Italic Font.
E.g <address>Abc,New Delhi,India</address>


Area Tag (<area>)
Area tag Defines an Area in image mapping where we Create A image map i.e Clickable link in image by image area and coordinates .if you want More about image mapping and how to create it i already posted a article on this please read it.
E.g <img src=”hello.png” alt=”hello” usemap=”#hello”>
<map name=”hello”>
<area shape=”rect” coords=”0,0,82,120” href=”next.html”>
<area shape=”circle” coords=”120,58,8”’ href=”next2.html”>
</map>
Attributes :
Coords – This is coordinates of area of circle,rectangle of image.
Href- This is Link of url on click on image area.
Target- _blank,_parent.
Article Tag (<article></article>)
Article Tag defines the article in webpage such as post,comments.
E.g- <article>Again new post is Ready</article>


Audio Tag (<audio></audio>)
Audio tag Play the sound in webpage,such as music.
E.g - <audio controls=”controls”>
<source src=”hello.mp3” type=”audio/mp3”>
Your browser not supported
</audio>
if Your Browser not Support Audio tag it print the text “your browser not supported”.


Bold Text (<b></b>)


<b> this is for bold the text in our site.
E.g- <b>hello</b>

Body Tag (<body></body>)

<body> this is used for our body of site every contents of our site go inside body tag
E.g- <body>covers all</body>

  Break Tag(</br>)
<br> used for breaking the lines

Button Tag (<button></button>)
<button> create a button in our site
E.g <button>click</button>


Form Elements like (form,input,select,checkbox,radio,textarea)

lets read about input element select and textarea which used in submitting form.
we can create a form by using element <form>

e.g- <form action="hello.php" method="post">

</form>

here action is a
attribute for where we send the values of input fields and method is the method of sending data like get or post

if we use
get the then the value will show in our Url if we use post then value will be send hidden who carry value from one page to another all input field inside form will send the value by carrying value in its name attribute.
Note: - if we upload file using form then we must add extra attribute (enctype=”multipart/form-data”).

Input tag (<input>)
creates a input like radio,text,checkbox,file
<input type="text" name="hello"> (textbox)
<input type="radio" name="hello2"> (radio)
<input type="checkbox" name="hello3"> (checkbox)
<input type="submit" value="submit">(submit button)
<input type="reset" value="reset"> (reset input button>
<input type="file" name="file">(for file uploading)

Note :- using file uploading we must used enctype="multipart/form-data" attribute in our html form for sending the file data to server.


Select and option tag (<select></select>)
Select tag get value from its child tag option which we selected.


<select name="hello4">
<option>1</option>
<option>2</option>
</select>



div tag (<div></div>)
Div is a element for creating a small section in our site

Table,table row,table column(<table><table>,<tr><td>)
<table>
create a row column data in a table
<tr> this is table row 
<td> this is table column
<th>this is table heading

<table>
<tr><td>one</td><td>two</td></tr> 
<tr><td>three</td><td>four</td></tr> 
</table>

if we want two merge two column the simply use
attribute in td colspan=2
if we want to merge two row of a cell the simple use attribute in td rowspan=2

unordered list (ul),ordered list (ol),defination list(dl)

Unordered list
<ul>
<li>item1 </li>
<li>item2 </li>
<li>item3 </li>
<li>item4 </li>
</ul>

Ordered List
<ol>
<li>item1 </li>
<li>item2 </li>
<li>item3 </li>
<li>item4 </li>
</ol>


Defination list
<dl>
<li>item1 </li>
<li>item2 </li>
<li>item3 </li>
<li>item4 </li>
</dl>

image tag (<image>)
<img src="hello.jpg">
for displaying image in our site
where
src is the attribute for image path.
Alt attribute is used in image tag to display text if image will not loading .
Style Tag <style>

<style></style>
for css style of our page


Script Tag <script>

<script></script>
for script of our page like js.

<link>
for calling of external stylesheet in our page
<link rel="stylesheet" href="stylesheet.css">

for calling of external js
<script src="heelo.js"></script>


Paragraph tag <p></p>


<p> paragraph tag for certain paragraph in our site.


Title Tag <title>


<title>title tag of our site


Heading tag <hn- n=1,2,3,4,5,6>)

h1-h6 heading tag in our site.
<h1>.................</h1>
<h2>.................</h2>
<h3>.................</h3>
<h4>.................</h4>
<h5>.................</h5>
<h6>.................</h6>
Strong,Emphazise,Italic tag (<strong>,<em>,<i>)


Strong text - <strong>this is strong wriiten text</strong>
Emphazise - <em> this is em text</em>
Italic - <i>this is italic text</i>
Video tag <video>


<video controls=”controls” height=”100” width=”100”>
<source src=”hello.mp4” type=”video/mp4”>
Your Browser not Supported.
</video>
Video tag is used For adding video is our websites. If video tag not support your browser then it prints te text “your browser not support”.


Iframe <iframe>


iframe tag is used to load external webpage in our site.
Attribute
src=”hello.html”
E.g <iframe src=”hello.html” height=”100” width=”100”>



Thanks all This post Will be Update More Soon..




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