Many-to-Many Relationship in Database

In relational database design, a many-to-many relationship is a type of association where multiple records in one table are related to multiple records in another table. Many-to-many relationships ...

One-to-One Relationship in Database

One-to-one relationships in the database are important when organising data so that each record in a table can relate to just one record in another table.

Object methods in JavaScript

Objects are one of the most important data types in JavaScript, and they play a central role in the language. An object is a collection of key-value pairs, where the keys are strings (or symbols), ...

this Keyword in JavaScript

The this keyword in JavaScript is one of the most powerful yet confusing concepts for developers, especially for those new to the language. Its behaviour can vary depending on the context in which ...

Prototype and Prototypal Inheritance in JavaScript

JavaScript is often described as a prototype-based language. JavaScript uses prototypal inheritance, unlike traditional object-oriented programming languages that use class-based inheritance. This ...

Hoisting in JavaScript

Hoisting is one of the more unique features of JavaScript that can sometimes confuse beginners. It refers to the process by which the JavaScript engine moves variable and function declarations to t...

Objects in JavaScript

In JavaScript, an object is one of the most important data structures, allowing developers to represent and manipulate real-world entities in a meaningful way. Objects store collections of key-valu...

Array in JavaScript

In JavaScript, an array is a data structure that allows you to store multiple values in a single variable. Arrays are one of the most commonly used features in JavaScript, offering a flexible way t...

Array methods in JavaScript

Arrays are a fundamental data structure in JavaScript, allowing developers to store and manipulate collections of elements. JavaScript provides a variety of built-in array methods that make it easy...

var, let, and const in JavaScript

In JavaScript, variable declaration is an essential concept. The language provides three ways to declare variables: var, let, and const. While they may seem similar at first glance, each has distin...