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Wednesday, November 6, 2019

JavaScript Tutorial: Full JavaScript Tutorial Notes with PDF by CodeTextPro

In this javascript tutorials, we will learn about - What is JavaScript? , Client-Side JavaScript, Advantages of JavaScript, Limitations of JavaScript, JavaScript Development Tools, Where is JavaScript Today? , Enabling JavaScript in all browser(JavaScript in Internet Explorer, JavaScript in Firefox, JavaScript in Firefox, JavaScript in Chrome, JavaScript in Opera, Warning for Non-JavaScript Browsers, Placement in JavaScript, Variables in JavaScript, Operators in JavaScript, If-Else condition in JavaScript, Switch case in Javascript, While loop, for-loop, For-in-loop in JavaScript, Loop Control in JavaScript, Functions in JavaScript, Events in JavaScript, Cookies in JavaScript) etc.






What is JavaScript?

Javascript is a dynamic computer programming language. It is lightweight and most commonly used as a part of web pages, whose implementations allow
client-side script to interact with the user and make dynamic pages. It is an interpreted programming language with object-oriented capabilities.

JavaScript was first known as LiveScript, but Netscape changed its name to JavaScript, possibly because of the excitement being generated by Java.
JavaScript made its first appearance in Netscape 2.0 in 1995 with the name LiveScript. The general-purpose core of the language has been embedded in Netscape, Internet Explorer, and other web browsers.

The ECMA-262 Specification defined a standard version of the core JavaScript language.

 JavaScript is a lightweight, interpreted programming language.
 Designed for creating network-centric applications.
 Complementary to and integrated with Java.
 Complementary to and integrated with HTML.

 Open and cross-platform.


Client-Side JavaScript

Client-side JavaScript is the most common form of language. The script should be included in or referenced by an HTML document for the code to be
interpreted by the browser.

It means that a web page need not be a static HTML, but can include programs that interact with the user, control the browser, and dynamically create HTML
content.

The JavaScript client-side mechanism provides many advantages over traditional CGI server-side scripts. For example, you might use JavaScript to check if the
user has entered a valid e-mail address in a form field.

The JavaScript code is executed when the user submits the form, and only if all the entries are valid, they would be submitted to the Web Server.

JavaScript can be used to trap user-initiated events such as button clicks, link navigation, and other actions that the user initiates explicitly or implicitly.


Advantages of JavaScript

The merits of using JavaScript are:


  • Less server interaction: You can validate user input before sending the page off to the server. This saves server traffic, which means less load on your server.
  • Immediate feedback to the visitors: They don't have to wait for a page reload to see if they have forgotten to enter something.
  • Increased interactivity: You can create interfaces that react when the user hovers over them with a mouse or activates them via the keyboard.
  • Richer interfaces: You can use JavaScript to include such items as drag and drop components and sliders to give a Rich Interface to your site visitors.

Download Full JavaScript Tutorial PDF Notes Click the below Tutorialspoint link - 
JavaScript Tutorial Full Notes

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