What are some of the common mistakes that beginners make in JavaScript?

Asked by Last Modified  

4 Answers

Learn Java Script Training

Follow 1
Answer

Please enter your answer

Dev Group

some of the common mistakes that beginners make in JavaScript are 1. Missing curly braces. 2. Missing semicolons 3. Not understanding type coercion 4.Arithmetic operations with floats
Comments
Dislike Bookmark

Full Stack / MERN Stack Web Developer

-Not understanding type coercion -Arithmetic operations with floats -Using constructors over literals -Not understanding how scopes work -Not understanding asynchronous code -Misusing event listeners
Comments
Dislike Bookmark

IT Professional Trainer with 15 years of experience in IT Industry

JavaScript is a case sensitive. So some of the mistakes are happened with the help of these Missing curly bracesMismatching quotes, parenthesis and curly braceMissing semicolonsNot understanding type coercionArithmetic operations with floatsUsing constructors over literalsNot understanding how scopes...
read more
JavaScript is a case sensitive. So some of the mistakes are happened with the help of these Missing curly bracesMismatching quotes, parenthesis and curly braceMissing semicolonsNot understanding type coercionArithmetic operations with floatsUsing constructors over literalsNot understanding how scopes workIncorrect usage of 'if' statement comparisonNo block-level scopeUsing named objects indexes as arraysConfusing undefined and nullConfusing addition and concatenationBreaking a return statement read less
Comments
Dislike Bookmark

Full Stack Developer and Trainer

1) Forgetting Semicolons 2) Forgeting 'var' keyword while declaring variables. 3) Misusing event listeners 4) A difficult concept for beginners to understand is JavaScript's scoping rules and closures. For JS Training or Support, you can connect with me.
Comments
Dislike Bookmark

View 2 more Answers

Related Questions

Is it true that in a few years most of the code will be written in JavaScript?
Its not true at all.
Amandeep
How Java is different from Java script?
Java is server side language is used to make application. Java is need to compile. The end user can not see the code of java it is secured. But Javascript is script language is a open source can be viewed by end user in browser.
Samadhan
How to start Learning Javascript, Jquery and Angular
Very easy, your requirement in advanced client side technologies, you can get this course every where
Sandeep
What's the event loop?
In computer science, the event loop is a programming construct that waits for and dispatches events or messages in a program. It works by making a request to some internal or external "event provider"....
Spandana
0 0
5
Want to learn javascript jquery and angular with live demo
Yes you can join me, i will provide you teaching with real life example,
Sandeep
0 0
7

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

How can everyone prepare to clear any Java interview?
Java interview your java should be much strong then J2EE. core java and Advance java is the basic foundation for Interview. Some of the topic about which you should know before going for a java interview...

Bright Computer Education

1 0
0
JavaScript Arrow Function.
Javascript Arrow Functions : JavaScript ES6 is a type or version which let us provide a way to write javascript syntax on a better way. ES6 version is having a feature or new method to use functions...

Ajay

1 0
0
What Is Mean Stack? Why Mean Stack Is Popular Now?
Mean Stack is standing for MongoDB, ExpressJS, AngularJS and NodeJS. These four javascript solutions create a high performing web application. Mainly JavaScript is the frontend language. It’s working...

Shibaji Debnath

1 0
0
JavaScript Arrow Function
Javascript Arrow Functions : JavaScript ES6 is a type or version which let us provide a way to write javascript syntax in a better way. ES6 version is having a feature or new method to use functions...
A

Abhay

0 1
0
Web Technology Tutorial
Web Technology has 2 category Front End (HTML,CSS,JS Etc) Back End/Server Side (PHP,JSP,ASP,ROR Etc) Front End technologies are - HTML, CSS, Bootstrap, Javascript, jQuery etc. Using front end...

Vetrivel Samidurai

1 0
0

Recommended Articles

Top 6 Skills Required to Become a Web Designer

Here are the top 6 must have skills for every Web Designer : Technical Skills Web designers undoubtedly require very strong technical skills. They must have hands on using Web designing software and tools, such as Adobe Dreamweaver, Fireworks, Photoshop, Flash etc. In addition to the knowledge of design...

Read full article >

Top 5 Skills Every Software Developer Must have

Software Development has been one of the most popular career trends since years. The reason behind this is the fact that software are being used almost everywhere today.  In all of our lives, from the morning’s alarm clock to the coffee maker, car, mobile phone, computer, ATM and in almost everything we use in our daily...

Read full article >

8 Hottest IT Careers of 2014!

Whether it was the Internet Era of 90s or the Big Data Era of today, Information Technology (IT) has given birth to several lucrative career options for many. Though there will not be a “significant" increase in demand for IT professionals in 2014 as compared to 2013, a “steady” demand for IT professionals is rest assured...

Read full article >

Learn Hadoop and Big Data

Hadoop is a framework which has been developed for organizing and analysing big chunks of data for a business. Suppose you have a file larger than your system’s storage capacity and you can’t store it. Hadoop helps in storing bigger files than what could be stored on one particular server. You can therefore store very,...

Read full article >

Find Java Script Training classes near you
Java Script Training classes in Bangalore
Java Script Training classes in Hyderabad
Java Script Training classes in Pune
Java Script Training classes in Mumbai
Java Script Training classes in Chennai
Java Script Training classes in Delhi
Java Script Training classes in Kolkata
Java Script Training classes in Gurgaon
Java Script Training classes in Noida
Java Script Training classes in Jaipur

Looking for Java Script Training classes?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you