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The this keyword in JavaScript is very important concept but at the same time very confusing to understand.

In this tutorial, we’ll learn how to create classes in JavaScript.

This is frequently asked question in JavaScript interview. This post describes the Function prototype methods call(), apply() and bind() with their syntax, usage and practical examples.

This post describes the Lexical Scope, Closures and Currying Function in JavaScript and their relations with examples.

This is one of the example of using recursive function in Java to find M power N (M^N).

Print all the possible combinations of a given String using Recursive function in Java

One of the major feature of Java 8 is addition of Stream. It also has introduced the functional programming in Java. We will discuss different stream operations available in Collection, Array, IntStream with examples. We will also discuss the difference between Intermediate and Terminal operations.

Decorator design pattern is used to add a new feature on the existing object by wrapping it with a decorator class.

This post describes the best practices to define constants and configuration values in JavaScript using const and Object.freeze() and the difference between them.

This post describes the usage of various Object methods like Object.create(), Object.assign(), Object.freeze(), Object.seal() and many more available in JavaScript with examples.