JavaScript interviews are not the easiest and many candidates spent countless hours grinding through scattered coding questions to build confidence. While lots of practice makes all the difference, it also matters how you practice. Having a structured plan will help you master all the fundamental and advanced concepts that interviewers expect.

The interviewers may ask these following topics:

1. JavaScript Double Equals Sign VS Triple Equals Sign : When should we use them?


React is the world’s most popular JavaScript library. It makes painless to create interactive UIs. Design simple views for each state in your application, and React will efficiently update and render just the right components when your data changes.

Let’s see what does the React actually do :

1. React is not a framework

React is a JavaScript library. It is not exactly a framework. It is not a complete solution and you will often need to use more libraries with React to form any solution. React does not assume anything about the other parts in any solution.

Frameworks are a common choice for companies and…


New web developers often try to learn everything at once without mastering any one skill. But before you learn the latest JavaScript framework, make sure you know the fundamentals of HTML, CSS and every little thing first to last.

1. JavaScript Data Types

Programming languages all have built-in data types and data structures, but these often differ from one language to another. When you are learning JavaScript you must have the idea about these things. They are :

a. Dynamic typing

JavaScript is a loosely typed and dynamic language.

b. Data and Structure types

The latest ECMAScript standard defines nine types.

c. Primitive Values

All types except objects define immutable values (that is, values which…


Image source from codeburst.io

JavaScript is a scripting or programming language that allows you to implement complex features on web pages — every time a web page does more than just sit there and display static information for you to look at — displaying timely content updates, interactive maps, animated 2D/3D graphics, scrolling video jukeboxes, etc. — you can bet that JavaScript is probably involved.

1. String : The string object is used to represent and manipulate a sequence of characters.

Strings are useful for holding data that can be represented in text form. Some of the most-used operations on strings are to check their length and to build and concatenate them using the + and += string operators.

Example…

Fariza Mubashshara Rafa

Information Science Major • Focusing on my interests • Project : Quarantine coding • INTP-T

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