What is filter() in JavaScript?

Understanding the Basics of filter() Method in JavaScript Filter() is a built-in JavaScript method that returns a new array with all the elements that pass the provided function’s test. The filter() method does not modify the original array, but it creates a new array with a subset of elements from the original array that meets … Read more

What is forEach() in JavaScript?

Introduction to forEach() – A Powerful Method in JavaScript The forEach() method is a powerful tool in JavaScript used to iterate over all elements of an array or any iterable object. It is an easy and efficient way to loop through an array and perform actions on its elements. The syntax for using the forEach() … Read more

What is indexOf in JavaScript?

Introduction to indexOf: An Important Function in JavaScript The indexOf is a built-in function in JavaScript that allows you to search for a specific element within an array and returns the index of the first occurrence of the element. This function can come in handy when working with arrays in JavaScript as it can help you determine … Read more

Why [] == [] in JavaScript is false?

An Overview of JavaScript Equality Operators In JavaScript, there are two types of equality operators: “==” (loose equality) and “===” (strict equality). Loose equality compares two values for equality, after converting both values to a common type. Strict equality compares two values for equality, but without type conversion. The “==” operator compares the two values … Read more

Why does “1” == 1 return true in JavaScript?

Introduction to JavaScript Data Types JavaScript has several built-in data types, which can be broadly classified as: Primitive data types are basic data types and include: On the other hand, reference data types include: Understanding data types in JavaScript is important because it helps in writing efficient and effective code. It also helps in avoiding … Read more