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What is JavaScript (JS) ? Why We use JS ? :- 1

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JavaScript Tutorial
JavaScript is the programming language of HTML and the Web.
JavaScript is easy to learn.
This tutorial will teach you JavaScript from basic to advanced.
Examples in Each Chapter
Example
My First JavaScript
We recommend reading this tutorial, in the sequence listed in the left menu.
Learn by Examples
Examples are better than 1000 words. Examples are often easier to understand than text explanations.
This tutorial supplements all explanations with clarifying "Try it Yourself" examples.

Why Study JavaScript?
JavaScript is one of the 3 languages all web developers must learn:
   1. HTML to define the content of web pages
   2. CSS to specify the layout of web pages
   3. JavaScript to program the behaviour of web pages
Web pages are not the only place where JavaScript is used. Many desktop and server programs use JavaScript. Node.js is the best known. Some databases, like MongoDB and Couch DB, also use JavaScript as their programming language.
Did You Know?
JavaScript and Java are completely different languages, both in concept and design.
JavaScript was invented by Brendan Eich in 1995, and became an ECMA standard in 1997.
ECMA-262 is the official name of the standard. ECMAScript is the official name of the language.
Learning Speed
In this tutorial, the learning speed is your choice.
Everything is up to you.
If you are struggling, take a break, or reread the material.
Always make sure you understand all the "Try-it-Yourself" examples.
JavaScript References
Infinity4Education maintains a complete JavaScript reference, including all HTML and browser objects.
The reference contains examples for all properties, methods and events, and is continuously updated according to the latest web standards.

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(PDF) What is HTML? Theory with Example :- Infinity4Education

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HTML Full Tutorial in English HTML Form Tag HTML Element Tag

HTML Home
HTML Stands for Hyper Text Markup Language.
HTML is the standard markup language for Web pages.
With HTML you can create your own Website.
HTML Editors
HTML Editors are Notepad, Notepad++, Sublime Text, Etc.
Example
<!DOCTYPE html>
<html>
<head>
<title>Page Title</title>
</head>
<body>

<h1>This is a Heading</h1>
<p>This is a paragraph.</p>

</body>
</html>
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(PDF) HTML Introduction with Examples :- Infinity4Education

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HTML Introduction
What is HTML?
  • HTML stands for Hyper Text Markup Language
  • HTML describes the structure of a Web page
  • HTML consists of a series of elements
  • HTML elements tell the browser how to display the content
  • HTML elements are represented by tags
  • HTML tags label pieces of content such as "heading", "paragraph", "table", and so on
  • Browsers do not display the HTML tags, but use them to render the content of the page
A Simple HTML Document
Example
<!DOCTYPE html>
<html>
<head>
<title>Page Title</title>
</head>
<body>

<h1>My First Heading</h1>
<p>My first paragraph.</p>

</body>
</html>
Example Explanation :
  • The <!DOCTYPE html> declaration defines this document to be HTML5
  • The <html> element is the root element of an HTML page
  • The <head> element contains meta information about the document
  • The <title> element specifies a title for the document
  • The <body> element contains the visible page content
  • The <h1> element defines a large heading
  • The <p> element defines a paragraph
HTML Tags
HTML tags are element names surrounded by angle brackets:
<tagname>content goes here...</tagname>
  • HTML tags normally come in pairs like <p> and </p>
  • The first tag in a pair is the start tag, the second tag is the end tag
  • The end tag is written like the start tag, but with a forward slash inserted before the tag name
Tip: The start tag is also called the opening tag, and the end tag the closing tag.
Web Browsers
The purpose of a web browser (Chrome, Edge, Firefox, Safari) is to read HTML documents and display them.
The browser does not display the HTML tags, but uses them to determine how to display the document:
View in Browser
HTML Page Structure
<html>
<head>
<title>Page title</title>
</head>
<body>
<h1>This is a heading 1</h1>
<h2>This is a heading 2</h2>
<h3>This is a heading 3</h3>
<h4>This is a heading 4</h4>
<h5>This is a heading 5</h5>
<h6>This is a heading 6</h6>
<p>This is a paragraph.</p>
<p>This is another paragraph.</p>
</body>
</html>
Note: Only the content inside the <body> section (the white area above) is displayed in a browser.
The <!DOCTYPE> Declaration
The <!DOCTYPE> declaration represents the document type, and helps browsers to display web pages correctly.
It must only appear once, at the top of the page (before any HTML tags).
The <!DOCTYPE> declaration is not case sensitive.
The <!DOCTYPE> declaration for HTML5 is:
<!DOCTYPE html>


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(PDF) HTML Editors with Example :- Infinity4Education

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HTML Editors
Learn HTML Using Notepad or TextEdit
Web pages can be created and modified by using professional HTML editors.
However, for learning HTML we recommend a simple text editor like Notepad (PC) or TextEdit (Mac).
We believe using a simple text editor is a good way to learn HTML.
Follow the steps below to create your first web page with Notepad or TextEdit.
Step 1: Open Notepad (PC)
Windows 8 or later:
Open the Start Screen (the window symbol at the bottom left on your screen). Type Notepad.
Windows 7 or earlier:
Open Start > Programs > Accessories > Notepad
Step 1: Open TextEdit (Mac)
Open Finder > Applications > TextEdit
Also change some preferences to get the application to save files correctly. In Preferences > Format > choose "Plain Text"
Then under "Open and Save", check the box that says "Display HTML files as HTML code instead of formatted text".
Then open a new document to place the code.
Step 2: Write Some HTML
Write or copy some HTML into Notepad.
<!DOCTYPE html>
<html>
<body>

<h1>My First Heading</h1>

<p>My first paragraph.</p>

</body>
</html>
Notepad
Step 3: Save the HTML Page
Save the file on your computer. Select File > Save as in the Notepad menu.
Name the file "index.htm" and set the encoding to UTF-8 (which is the preferred encoding for HTML files).
View in Browser
You can use either .htm or .html as file extension. There is no difference, it is up to you.
Step 4: View the HTML Page in Your Browser
Open the saved HTML file in your favorite browser (double click on the file, or right-click - and choose "Open with").
The result will look much like this:
View in Browser
Example
<!DOCTYPE html>
<html>
<head>
<title>Page Title</title>
</head>
<body>

<h1>This is a Heading</h1>
<p>This is a paragraph.</p>

</body>
</html>



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(PDF) HTML Basic Examples Tags :- Infinity4Education

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HTML Basic Examples
HTML Documents
All HTML documents must start with a document type declaration: <!DOCTYPE html>.
The HTML document itself begins with <html> and ends with </html>.
The visible part of the HTML document is between <body> and </body>.
Example
<!DOCTYPE html>
<html>
<body>

<h1>My First Heading</h1>
<p>My first paragraph.</p>

</body>
</html>
HTML Headings
HTML headings are defined with the <h1> to <h6> tags.
<h1> defines the most important heading. <h6> defines the least important heading: 
Example
<h1>This is heading 1</h1>
<h2>This is heading 2</h2>
<h3>This is heading 3</h3>
<h4>This is heading 4</h4>
<h5>This is heading 5</h5>
<h6>This is heading 6</h6>
HTML Paragraphs
HTML paragraphs are defined with the <p> tag:
Example
<p>This is a paragraph.</p>
<p>This is another paragraph.</p>
HTML Links
HTML links are defined with the <a> tag:
Example
<a href="https://www.Infinity4Eduaction.com">This is a link</a>
The link's destination is specified in the href attribute. 
Attributes are used to provide additional information about HTML elements.
You will learn more about attributes in a later chapter.
HTML Images
HTML images are defined with the <img> tag.
The source file (src), alternative text (alt), width, and height are provided as attributes:
Example
<img src="Tree.jpg" alt="Infinity.com" width="104" height="142">
HTML Buttons
HTML buttons are defined with the <button> tag:
Example
<button>Click me</button>
HTML Lists
HTML lists are defined with the <ul> (unordered/bullet list) or the <ol> (ordered/numbered list) tag, followed by <li> tags (list items):
Example
<ul>
  <li>Coffee</li>
  <li>Tea</li>
  <li>Milk</li>
</ul>

<ol>
  <li>Coffee</li>
  <li>Tea</li>
  <li>Milk</li>
</ol>



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