JavaScript

Node.js and the browser both utilize JavaScript as their programming language. However, there are several key differences that set them apart. This article will explore these differences and highlight how writing JavaScript applications in Node.js differs from programming for the web inside the browser. As a frontend developer who extensively uses JavaScript, one of the significant advantages of Node.js is the ability to program everything, both the frontend and the backend, in a single language....

In JavaScript, there are multiple ways to access the value of a property within an object. Let’s explore these different methods: Dot Syntax One common way to access a property value is by using the dot syntax. This involves specifying the object name followed by a dot and the property name. For example: const dog = { name: 'Roger' } console.log(dog.name); // Output: Roger Using the dot syntax is straightforward and works well for properties with valid variable names....

IndexedDB is a powerful storage capability that has been introduced into browsers in recent years. It serves as a key/value store and is considered the definitive solution for storing data in browsers. In this article, we will provide an in-depth introduction to IndexedDB and cover various topics related to its usage. Introduction to IndexedDB IndexedDB is a noSQL database that allows you to store an indefinite amount of data in browsers....

Learn how to dynamically access a method of an object in JavaScript and improve code flexibility. Sometimes, you may encounter a situation where you have an object and need to call different methods based on certain conditions. For instance, you might have a car object and want to either drive() or park() it based on the driver.sleepy value. Traditionally, you can achieve this using an if/else condition: if (driver.sleepy > 6) { car....

Quicksort is a highly efficient algorithm for searching and sorting arrays in JavaScript. It makes use of recursion, which involves calling a function from within the same function. This technique helps streamline the search process and improve performance. Generally, Quicksort outperforms other algorithms like selection sort, especially in scenarios where the data set is large. The algorithm’s time complexity is generally O(n log n), which falls between O(n) and O(n^2). However, it’s worth noting that in the worst-case scenario, Quicksort can take the same time as selection sort, resulting in a time complexity of O(n^2)....

In JavaScript, the includes() method can be used to determine whether a string contains a specific value as a substring. The method returns a boolean value, true if the string includes the specified value, and false otherwise. Here are a few examples to illustrate its usage: 'JavaScript'.includes('Script') // true 'JavaScript'.includes('script') // false 'JavaScript'.includes('JavaScript') // true 'JavaScript'.includes('aSc') // true 'JavaScript'.includes('C++') // false In the first example, 'JavaScript' contains the substring 'Script', so the includes() method returns true....

In JavaScript, the trimEnd() method is used to remove white space from the end of a string. This article will provide you with all the information you need to understand and effectively utilize this method. Understanding the trimEnd() Method The trimEnd() method is used to remove any white space characters, such as spaces, tabs, or line breaks, from the end of a string. It returns a new string with the removed white space, leaving the original string untouched....

In this blog post, we will delve into the trimStart() method in JavaScript. This method is used to remove white spaces from the beginning of a string and return a new string with the spaces eliminated. We will explain what the trimStart() method does and provide illustrative examples to help you understand its functionality. Understanding the trimStart() Method The trimStart() method, also known as trimLeft(), belongs to the String object in JavaScript....

Closures are a fundamental concept in JavaScript that play a crucial role in how functions work. Understanding closures is essential for unlocking the full potential of JavaScript. So let’s dive into this topic and explore what closures are all about. In JavaScript, when a function is executed, it carries with it the scope that was in place when it was defined, rather than the state that is in place when it is called....

Learn all about the JavaScript padEnd() method for manipulating strings. String padding involves adding characters to a string in order to achieve a specific length. Introduced in ES2017, the padEnd() method is used to append characters at the end of a string. padEnd(targetLength [, padString]) Here is an example of how to use padEnd(): padEnd() ‘test’.padEnd(4) ‘test’ ‘test’.padEnd(5) ‘test ’ ‘test’.padEnd(8) ‘test ’ ‘test’.padEnd(8, ‘abcd’) ‘testabcd’ To explore a related method, check out padStart()....