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I am going to show how to format strings with template literals using the back tick and the dollar sign. It is a very easy and efficient method. The basic syntax is that you use the back tick (below your Escape key) and you use the dollar sign with curly braces like ${} to insert … Read more

Generating random numbers in JavaScript is straightforward. For generating random numbers, we use the random function which is given by JavaScript, which gives a value between 0 and 1. From the Math library we are calling this random function, and by this a random number will be generated and that particular number will be between … Read more

The map method is one of the most powerful functions for working with arrays. It helps to quickly transform data in JavaScript in a very smart and very clean way. It is used to create a new array by applying a particular function on each and every element of the original array. The map does … Read more

Prototype in JavaScript is a hidden feature that allows us to add new properties or methods to objects and share them across different instances. I will explain how it works and how to write the prototype in JavaScript. Every function in JavaScript has a special property called prototype. It is used to add methods and … Read more

If you have ever ended up with a pile of if-else statements, the switch statement in JavaScript is a great way to clean it up. A switch statement lets you compare one value against many possible cases and run the code for the first matching case. It is like a menu of conditions. If one … Read more

The JavaScript typeof operator is a very basic but very powerful operator. It helps you know what kind of data a variable is holding, and it is super useful for debugging and writing clean code in JavaScript. The typeof operator is used to check the data type of a value or a variable, and it … Read more

Checking if an array contains a specific value in JavaScript is a must-know concept for beginners and for coding interviews. Here I’ll explore two practical methods with clear examples and simple explanations: .includes() and .indexOf(). If arrays and loops are new to you, see loops, arrays. Suppose we have an array like apple, apple, banana, … Read more

I’m going to learn how to find the maximum and minimum values in an array using different methods in JavaScript. I will cover the Math.max method and the Math.min method, the spread operator with example and explanation, which will be perfect for the beginner and for your interview preparation. If you often pair arrays with … Read more

Formatting numbers properly in JavaScript comes up all the time with prices, scores, or measurements. I use two methods constantly: toFixed and parseFloat. I’ll show how to round numbers, format to a specific number of decimals, and safely convert a formatted string back to a number. If you’re brushing up on core flow control too, … Read more

We are going to learn how to parse JSON data in JavaScript. It is a must-know concept if you are working with APIs and storing data or just building modern apps. I will explain everything from scratch. Imagine someone sends you a letter in a code language and you need to decode it before you … Read more