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I will go through some of the Questions and Answers from JavaScript as easily as possible. Which will help you to understand the code and ace in your interview as a front-end web developer. Let’s Start…

What is the difference between Undefined & Null?

There are several differences between null and undefined, which are sometimes misunderstood as the same.

Definitions & Data Type:

Null — refers to no value. It is one of the primitive values of JavaScript. and its type is the Object type.

Undefined — refers to the value is not exist…

React is the most popular front-end technology that more and more companies are using, and if you are preparing to learn it, this ReactJS tutorial is just the right one for you. Here more than 10 concepts, that will help you in understanding the fundamental concepts of ReactJS.


JSX is a syntax extension to JavaScript. It is used with React to describe what the user interface should look like. By using JSX, we can write HTML structures in the same file that contains JavaScript code.


Components are the building blocks of any React application, and a single app usually consists…

Hi! Today I have brought you some hot topics of JavaScript. These topics will help you to grow as a potential web developer. So; Today I will walk you through some JavaScript Error handling and Testing, Binding, Hoisting, and Es6.

The World Of Coding is full of bugs and errors. That is why a lot of beginners feel low & frustrated. But This is the way you learn something and for sure you will go far if you have some persistence.

Error handling, “try…catch”

Programming is a thing where no matter how great you are, anytime your scripts can show errors. They may…

In this post, I have summarizes More than 10 things about the javascript method you should know as a bigginner.

The string is anything (letter, word, sentences, blank space even number) inside single or double quotes.

here are some methods for javaScript string:


The concat() method concatenates or you can say join the string arguments with the other string and returns a new string.

const string1 = ‘Add’;const string2 = ‘Me’;console.log(string1.concat(‘ ‘, str2)); // expected output: “Add Me”console.log(string2.concat(‘, ‘, str1)); // expected output: “Me Add”


This method takes out a section of a string and returns it as a new string, without modifying it.

const string1 = ‘you can remove me only or…

Hey mate! I know you are looking for something, which is common for every beginner out there. Even me, when I have started to use react this is one of the concerns for me. enough talk let’s do it:-

1. BootstrapCDN: I think the easiest way to use bootstrap for the first time in your React app is to use the CDN link. I know, I know it's a bit confusing where you will put that CDN link just put it to your React app inside the Public folder, go to the index.html file put the link in the head…


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