SlideShare a Scribd company logo
Company: Rolla Academy
Website: www.rollaacademy.com
Contact: Dubai: 043425652 0544000442
Sharjah: 065614331 0544499429
Ajman : 067429921 0561533313
What is JavaScript?
Have you ever entered something in the text input box of a search engine, or, have you submitted your
username and password on the login page of a social media website? When was the last time you filled
an online form? Have you ever played an online game? I need no superpowers to know that you already
did, or will do, at least one of the above-mentioned things today itself! If you have ever been helped,
benefited, or amused by these actions, then you certainly have this technology - JavaScript - to thank.
So, what is common amongst all these actions? It is the allowance provided to the user to bring about
some change in the web page, also known as responsiveness of the web page, or, simply, dynamic
nature of it. Such features of a website make it more interactive for the user.
To develop a website that is responsive to user's input, an object-oriented, client-side scripting language
is used, known as JavaScript, which was originally developed by the company called Netscape. JavaScript
enables you to interact with the web page by bringing about the above mentioned changes and more, as
we shall see in the next section. It is commonly said that JavaScript, along with the HyperText Markup
Language (HTML) and Cascading Style Sheets (CSS) form the core of the World Wide Web.
What features does JavaScript offer?
Deciding the behaviour of pages: As is clear from the above discussion, JavaScript allows the developer
to decide that how a page should respond to the various inputs given by the user. This enables you to
input text in text fields, like a search query in a search engine, filling online forms, logging into your
accounts by entering your username and password and playing games online.
Compatibility and Open Sourcing:
If you have a habit of aimlessly wandering around the settings of your browser, then you probably
would have encountered an option to “enable or disable JavaScript”.
The language is compatible with every browser as they have an inbuilt JavaScript engine, and its cross
platform nature allows it to be run on any operating system. Also, since it is open-source language, it
can be used without having the need of a specific licence.
Ubiquitousness:
JavaScript is used rigorously by almost every website and web technology, such as AJAX (Asynchronous
JavaScript + XML) used to send and receive data in the background without interfering with the display
and behaviour of the existing page.
Lightweight:
Albeit network centric, JavaScript has minimal server interaction which directly implies lesser load,
leading to faster processing and richer interactivity.
Ease of Validation:
If you have ever filled an online form, odds are that you often been notified of an error in the input
entries before submitting your details. Such data entries are instantly checked for validity, and given
immediate feedback to, using JavaScript itself.
Why should you learn JavaScript?
The answer is quite simple and straightforward. JavaScript is an essential building block of the Internet.
And if you are eyeing a career in web development or web design, then this is an indispensable skill that
you would not want to be missing in your profile. Apart from that, learning JS will also open several
other possibilities for you, including AJAX, jQuery and NODE.JS. Having learnt JavaScript along with the
skills of HTML and CSS, you stand a far higher chance of increasing your employability. Moreover, if you
want to build and publish your own website or a web blog, this is one skill that you should, ideally,
possess.
Note: JavaScript should not be confused with, and is not the same as, Java, which is developed by Sun
Microsystems Inc., and differs from it in concept, design and application.

More Related Content

Recently uploaded

Tape Measure Training & Practice Assessments.pdf
Tape Measure Training & Practice Assessments.pdfTape Measure Training & Practice Assessments.pdf
Tape Measure Training & Practice Assessments.pdf
KateRobinson68
 
thyroid case presentation.pptx Kamala's Lakshaman palatial
thyroid case presentation.pptx Kamala's Lakshaman palatialthyroid case presentation.pptx Kamala's Lakshaman palatial
thyroid case presentation.pptx Kamala's Lakshaman palatial
Aditya Raghav
 
在线制作加拿大萨省大学毕业证文凭证书实拍图原版一模一样
在线制作加拿大萨省大学毕业证文凭证书实拍图原版一模一样在线制作加拿大萨省大学毕业证文凭证书实拍图原版一模一样
在线制作加拿大萨省大学毕业证文凭证书实拍图原版一模一样
2zjra9bn
 
Learnings from Successful Jobs Searchers
Learnings from Successful Jobs SearchersLearnings from Successful Jobs Searchers
Learnings from Successful Jobs Searchers
Bruce Bennett
 
Status of Women in Pakistan.pptxStatus of Women in Pakistan.pptx
Status of Women in Pakistan.pptxStatus of Women in Pakistan.pptxStatus of Women in Pakistan.pptxStatus of Women in Pakistan.pptx
Status of Women in Pakistan.pptxStatus of Women in Pakistan.pptx
MuhammadWaqasBaloch1
 
0624.speakingengagementsandteaching-01.pdf
0624.speakingengagementsandteaching-01.pdf0624.speakingengagementsandteaching-01.pdf
0624.speakingengagementsandteaching-01.pdf
Thomas GIRARD BDes
 
How to Prepare for Fortinet FCP_FAC_AD-6.5 Certification?
How to Prepare for Fortinet FCP_FAC_AD-6.5 Certification?How to Prepare for Fortinet FCP_FAC_AD-6.5 Certification?
How to Prepare for Fortinet FCP_FAC_AD-6.5 Certification?
NWEXAM
 
BUKU PENJAGAAN BUKU PENJAGAAN BUKU PENJAGAAN
BUKU PENJAGAAN BUKU PENJAGAAN BUKU PENJAGAANBUKU PENJAGAAN BUKU PENJAGAAN BUKU PENJAGAAN
BUKU PENJAGAAN BUKU PENJAGAAN BUKU PENJAGAAN
cahgading001
 
labb123456789123456789123456789123456789
labb123456789123456789123456789123456789labb123456789123456789123456789123456789
labb123456789123456789123456789123456789
Ghh
 
lab.123456789123456789123456789123456789
lab.123456789123456789123456789123456789lab.123456789123456789123456789123456789
lab.123456789123456789123456789123456789
Ghh
 
A Guide to a Winning Interview June 2024
A Guide to a Winning Interview June 2024A Guide to a Winning Interview June 2024
A Guide to a Winning Interview June 2024
Bruce Bennett
 
Job Finding Apps Everything You Need to Know in 2024
Job Finding Apps Everything You Need to Know in 2024Job Finding Apps Everything You Need to Know in 2024
Job Finding Apps Everything You Need to Know in 2024
SnapJob
 
一比一原版布拉德福德大学毕业证(bradford毕业证)如何办理
一比一原版布拉德福德大学毕业证(bradford毕业证)如何办理一比一原版布拉德福德大学毕业证(bradford毕业证)如何办理
一比一原版布拉德福德大学毕业证(bradford毕业证)如何办理
taqyea
 
IT Career Hacks Navigate the Tech Jungle with a Roadmap
IT Career Hacks Navigate the Tech Jungle with a RoadmapIT Career Hacks Navigate the Tech Jungle with a Roadmap
IT Career Hacks Navigate the Tech Jungle with a Roadmap
Base Camp
 
官方认证美国旧金山州立大学毕业证学位证书案例原版一模一样
官方认证美国旧金山州立大学毕业证学位证书案例原版一模一样官方认证美国旧金山州立大学毕业证学位证书案例原版一模一样
官方认证美国旧金山州立大学毕业证学位证书案例原版一模一样
2zjra9bn
 
Switching Careers Slides - JoyceMSullivan SocMediaFin - 2024Jun11.pdf
Switching Careers Slides - JoyceMSullivan SocMediaFin -  2024Jun11.pdfSwitching Careers Slides - JoyceMSullivan SocMediaFin -  2024Jun11.pdf
Switching Careers Slides - JoyceMSullivan SocMediaFin - 2024Jun11.pdf
SocMediaFin - Joyce Sullivan
 
Leadership Ambassador club Adventist module
Leadership Ambassador club Adventist moduleLeadership Ambassador club Adventist module
Leadership Ambassador club Adventist module
kakomaeric00
 
Lbs last rank 2023 9988kr47h4744j445.pdf
Lbs last rank 2023 9988kr47h4744j445.pdfLbs last rank 2023 9988kr47h4744j445.pdf
Lbs last rank 2023 9988kr47h4744j445.pdf
ashiquepa3
 
Jill Pizzola's Tenure as Senior Talent Acquisition Partner at THOMSON REUTERS...
Jill Pizzola's Tenure as Senior Talent Acquisition Partner at THOMSON REUTERS...Jill Pizzola's Tenure as Senior Talent Acquisition Partner at THOMSON REUTERS...
Jill Pizzola's Tenure as Senior Talent Acquisition Partner at THOMSON REUTERS...
dsnow9802
 
5 Common Mistakes to Avoid During the Job Application Process.pdf
5 Common Mistakes to Avoid During the Job Application Process.pdf5 Common Mistakes to Avoid During the Job Application Process.pdf
5 Common Mistakes to Avoid During the Job Application Process.pdf
Alliance Jobs
 

Recently uploaded (20)

Tape Measure Training & Practice Assessments.pdf
Tape Measure Training & Practice Assessments.pdfTape Measure Training & Practice Assessments.pdf
Tape Measure Training & Practice Assessments.pdf
 
thyroid case presentation.pptx Kamala's Lakshaman palatial
thyroid case presentation.pptx Kamala's Lakshaman palatialthyroid case presentation.pptx Kamala's Lakshaman palatial
thyroid case presentation.pptx Kamala's Lakshaman palatial
 
在线制作加拿大萨省大学毕业证文凭证书实拍图原版一模一样
在线制作加拿大萨省大学毕业证文凭证书实拍图原版一模一样在线制作加拿大萨省大学毕业证文凭证书实拍图原版一模一样
在线制作加拿大萨省大学毕业证文凭证书实拍图原版一模一样
 
Learnings from Successful Jobs Searchers
Learnings from Successful Jobs SearchersLearnings from Successful Jobs Searchers
Learnings from Successful Jobs Searchers
 
Status of Women in Pakistan.pptxStatus of Women in Pakistan.pptx
Status of Women in Pakistan.pptxStatus of Women in Pakistan.pptxStatus of Women in Pakistan.pptxStatus of Women in Pakistan.pptx
Status of Women in Pakistan.pptxStatus of Women in Pakistan.pptx
 
0624.speakingengagementsandteaching-01.pdf
0624.speakingengagementsandteaching-01.pdf0624.speakingengagementsandteaching-01.pdf
0624.speakingengagementsandteaching-01.pdf
 
How to Prepare for Fortinet FCP_FAC_AD-6.5 Certification?
How to Prepare for Fortinet FCP_FAC_AD-6.5 Certification?How to Prepare for Fortinet FCP_FAC_AD-6.5 Certification?
How to Prepare for Fortinet FCP_FAC_AD-6.5 Certification?
 
BUKU PENJAGAAN BUKU PENJAGAAN BUKU PENJAGAAN
BUKU PENJAGAAN BUKU PENJAGAAN BUKU PENJAGAANBUKU PENJAGAAN BUKU PENJAGAAN BUKU PENJAGAAN
BUKU PENJAGAAN BUKU PENJAGAAN BUKU PENJAGAAN
 
labb123456789123456789123456789123456789
labb123456789123456789123456789123456789labb123456789123456789123456789123456789
labb123456789123456789123456789123456789
 
lab.123456789123456789123456789123456789
lab.123456789123456789123456789123456789lab.123456789123456789123456789123456789
lab.123456789123456789123456789123456789
 
A Guide to a Winning Interview June 2024
A Guide to a Winning Interview June 2024A Guide to a Winning Interview June 2024
A Guide to a Winning Interview June 2024
 
Job Finding Apps Everything You Need to Know in 2024
Job Finding Apps Everything You Need to Know in 2024Job Finding Apps Everything You Need to Know in 2024
Job Finding Apps Everything You Need to Know in 2024
 
一比一原版布拉德福德大学毕业证(bradford毕业证)如何办理
一比一原版布拉德福德大学毕业证(bradford毕业证)如何办理一比一原版布拉德福德大学毕业证(bradford毕业证)如何办理
一比一原版布拉德福德大学毕业证(bradford毕业证)如何办理
 
IT Career Hacks Navigate the Tech Jungle with a Roadmap
IT Career Hacks Navigate the Tech Jungle with a RoadmapIT Career Hacks Navigate the Tech Jungle with a Roadmap
IT Career Hacks Navigate the Tech Jungle with a Roadmap
 
官方认证美国旧金山州立大学毕业证学位证书案例原版一模一样
官方认证美国旧金山州立大学毕业证学位证书案例原版一模一样官方认证美国旧金山州立大学毕业证学位证书案例原版一模一样
官方认证美国旧金山州立大学毕业证学位证书案例原版一模一样
 
Switching Careers Slides - JoyceMSullivan SocMediaFin - 2024Jun11.pdf
Switching Careers Slides - JoyceMSullivan SocMediaFin -  2024Jun11.pdfSwitching Careers Slides - JoyceMSullivan SocMediaFin -  2024Jun11.pdf
Switching Careers Slides - JoyceMSullivan SocMediaFin - 2024Jun11.pdf
 
Leadership Ambassador club Adventist module
Leadership Ambassador club Adventist moduleLeadership Ambassador club Adventist module
Leadership Ambassador club Adventist module
 
Lbs last rank 2023 9988kr47h4744j445.pdf
Lbs last rank 2023 9988kr47h4744j445.pdfLbs last rank 2023 9988kr47h4744j445.pdf
Lbs last rank 2023 9988kr47h4744j445.pdf
 
Jill Pizzola's Tenure as Senior Talent Acquisition Partner at THOMSON REUTERS...
Jill Pizzola's Tenure as Senior Talent Acquisition Partner at THOMSON REUTERS...Jill Pizzola's Tenure as Senior Talent Acquisition Partner at THOMSON REUTERS...
Jill Pizzola's Tenure as Senior Talent Acquisition Partner at THOMSON REUTERS...
 
5 Common Mistakes to Avoid During the Job Application Process.pdf
5 Common Mistakes to Avoid During the Job Application Process.pdf5 Common Mistakes to Avoid During the Job Application Process.pdf
5 Common Mistakes to Avoid During the Job Application Process.pdf
 

Featured

How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024
Albert Qian
 
Social Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie InsightsSocial Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie Insights
Kurio // The Social Media Age(ncy)
 
Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024
Search Engine Journal
 
5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary
SpeakerHub
 
ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd
Clark Boyd
 
Getting into the tech field. what next
Getting into the tech field. what next Getting into the tech field. what next
Getting into the tech field. what next
Tessa Mero
 
Google's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search IntentGoogle's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search Intent
Lily Ray
 
How to have difficult conversations
How to have difficult conversations How to have difficult conversations
How to have difficult conversations
Rajiv Jayarajah, MAppComm, ACC
 
Introduction to Data Science
Introduction to Data ScienceIntroduction to Data Science
Introduction to Data Science
Christy Abraham Joy
 
Time Management & Productivity - Best Practices
Time Management & Productivity -  Best PracticesTime Management & Productivity -  Best Practices
Time Management & Productivity - Best Practices
Vit Horky
 
The six step guide to practical project management
The six step guide to practical project managementThe six step guide to practical project management
The six step guide to practical project management
MindGenius
 
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
RachelPearson36
 
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Applitools
 
12 Ways to Increase Your Influence at Work
12 Ways to Increase Your Influence at Work12 Ways to Increase Your Influence at Work
12 Ways to Increase Your Influence at Work
GetSmarter
 
ChatGPT webinar slides
ChatGPT webinar slidesChatGPT webinar slides
ChatGPT webinar slides
Alireza Esmikhani
 
More than Just Lines on a Map: Best Practices for U.S Bike Routes
More than Just Lines on a Map: Best Practices for U.S Bike RoutesMore than Just Lines on a Map: Best Practices for U.S Bike Routes
More than Just Lines on a Map: Best Practices for U.S Bike Routes
Project for Public Spaces & National Center for Biking and Walking
 
Ride the Storm: Navigating Through Unstable Periods / Katerina Rudko (Belka G...
Ride the Storm: Navigating Through Unstable Periods / Katerina Rudko (Belka G...Ride the Storm: Navigating Through Unstable Periods / Katerina Rudko (Belka G...
Ride the Storm: Navigating Through Unstable Periods / Katerina Rudko (Belka G...
DevGAMM Conference
 
Barbie - Brand Strategy Presentation
Barbie - Brand Strategy PresentationBarbie - Brand Strategy Presentation
Barbie - Brand Strategy Presentation
Erica Santiago
 
Good Stuff Happens in 1:1 Meetings: Why you need them and how to do them well
Good Stuff Happens in 1:1 Meetings: Why you need them and how to do them wellGood Stuff Happens in 1:1 Meetings: Why you need them and how to do them well
Good Stuff Happens in 1:1 Meetings: Why you need them and how to do them well
Saba Software
 
Introduction to C Programming Language
Introduction to C Programming LanguageIntroduction to C Programming Language
Introduction to C Programming Language
Simplilearn
 

Featured (20)

How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024
 
Social Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie InsightsSocial Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie Insights
 
Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024
 
5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary
 
ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd
 
Getting into the tech field. what next
Getting into the tech field. what next Getting into the tech field. what next
Getting into the tech field. what next
 
Google's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search IntentGoogle's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search Intent
 
How to have difficult conversations
How to have difficult conversations How to have difficult conversations
How to have difficult conversations
 
Introduction to Data Science
Introduction to Data ScienceIntroduction to Data Science
Introduction to Data Science
 
Time Management & Productivity - Best Practices
Time Management & Productivity -  Best PracticesTime Management & Productivity -  Best Practices
Time Management & Productivity - Best Practices
 
The six step guide to practical project management
The six step guide to practical project managementThe six step guide to practical project management
The six step guide to practical project management
 
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
 
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
 
12 Ways to Increase Your Influence at Work
12 Ways to Increase Your Influence at Work12 Ways to Increase Your Influence at Work
12 Ways to Increase Your Influence at Work
 
ChatGPT webinar slides
ChatGPT webinar slidesChatGPT webinar slides
ChatGPT webinar slides
 
More than Just Lines on a Map: Best Practices for U.S Bike Routes
More than Just Lines on a Map: Best Practices for U.S Bike RoutesMore than Just Lines on a Map: Best Practices for U.S Bike Routes
More than Just Lines on a Map: Best Practices for U.S Bike Routes
 
Ride the Storm: Navigating Through Unstable Periods / Katerina Rudko (Belka G...
Ride the Storm: Navigating Through Unstable Periods / Katerina Rudko (Belka G...Ride the Storm: Navigating Through Unstable Periods / Katerina Rudko (Belka G...
Ride the Storm: Navigating Through Unstable Periods / Katerina Rudko (Belka G...
 
Barbie - Brand Strategy Presentation
Barbie - Brand Strategy PresentationBarbie - Brand Strategy Presentation
Barbie - Brand Strategy Presentation
 
Good Stuff Happens in 1:1 Meetings: Why you need them and how to do them well
Good Stuff Happens in 1:1 Meetings: Why you need them and how to do them wellGood Stuff Happens in 1:1 Meetings: Why you need them and how to do them well
Good Stuff Happens in 1:1 Meetings: Why you need them and how to do them well
 
Introduction to C Programming Language
Introduction to C Programming LanguageIntroduction to C Programming Language
Introduction to C Programming Language
 

Rolla Academy Explain Why Should you learn JavaScript Course in Dubai?

  • 1. Company: Rolla Academy Website: www.rollaacademy.com Contact: Dubai: 043425652 0544000442 Sharjah: 065614331 0544499429 Ajman : 067429921 0561533313 What is JavaScript? Have you ever entered something in the text input box of a search engine, or, have you submitted your username and password on the login page of a social media website? When was the last time you filled an online form? Have you ever played an online game? I need no superpowers to know that you already did, or will do, at least one of the above-mentioned things today itself! If you have ever been helped, benefited, or amused by these actions, then you certainly have this technology - JavaScript - to thank. So, what is common amongst all these actions? It is the allowance provided to the user to bring about some change in the web page, also known as responsiveness of the web page, or, simply, dynamic nature of it. Such features of a website make it more interactive for the user.
  • 2. To develop a website that is responsive to user's input, an object-oriented, client-side scripting language is used, known as JavaScript, which was originally developed by the company called Netscape. JavaScript enables you to interact with the web page by bringing about the above mentioned changes and more, as we shall see in the next section. It is commonly said that JavaScript, along with the HyperText Markup Language (HTML) and Cascading Style Sheets (CSS) form the core of the World Wide Web. What features does JavaScript offer? Deciding the behaviour of pages: As is clear from the above discussion, JavaScript allows the developer to decide that how a page should respond to the various inputs given by the user. This enables you to input text in text fields, like a search query in a search engine, filling online forms, logging into your accounts by entering your username and password and playing games online. Compatibility and Open Sourcing: If you have a habit of aimlessly wandering around the settings of your browser, then you probably would have encountered an option to “enable or disable JavaScript”. The language is compatible with every browser as they have an inbuilt JavaScript engine, and its cross platform nature allows it to be run on any operating system. Also, since it is open-source language, it can be used without having the need of a specific licence. Ubiquitousness: JavaScript is used rigorously by almost every website and web technology, such as AJAX (Asynchronous JavaScript + XML) used to send and receive data in the background without interfering with the display and behaviour of the existing page.
  • 3. Lightweight: Albeit network centric, JavaScript has minimal server interaction which directly implies lesser load, leading to faster processing and richer interactivity. Ease of Validation: If you have ever filled an online form, odds are that you often been notified of an error in the input entries before submitting your details. Such data entries are instantly checked for validity, and given immediate feedback to, using JavaScript itself. Why should you learn JavaScript? The answer is quite simple and straightforward. JavaScript is an essential building block of the Internet. And if you are eyeing a career in web development or web design, then this is an indispensable skill that you would not want to be missing in your profile. Apart from that, learning JS will also open several other possibilities for you, including AJAX, jQuery and NODE.JS. Having learnt JavaScript along with the skills of HTML and CSS, you stand a far higher chance of increasing your employability. Moreover, if you want to build and publish your own website or a web blog, this is one skill that you should, ideally, possess. Note: JavaScript should not be confused with, and is not the same as, Java, which is developed by Sun Microsystems Inc., and differs from it in concept, design and application.