The DataView Object: What it is and How to Use it

Learn about the DataView object and its usage The DataView object is a view into an ArrayBuffer, similar to Typed Arrays. However, the items in the array can have different sizes and types. Let’s explore how to use it with an example: const buffer = new ArrayBuffer(64) const view = new DataView(buffer) When creating a DataView, we can specify the starting byte and the length of the view: const view = new DataView(buffer, 10) //start at byte 10 const view = new DataView(buffer, 10, 30) //start at byte 10, and add 30 items If no additional arguments are provided, the view starts at position 0 and includes all the bytes in the buffer....

The Decimal Number System: An Introduction

In the Western world, the decimal number system is the most widely used and familiar system for representing numbers. While there are other number systems in existence, the decimal system has become the default choice in society. The reason behind this can be attributed to the fact that humans have two hands (and two feet) with five fingers on each, making counting from 1 to 10 a natural process. Once you reach 10, you start over to reach 20, and so on....

The defineProperty() method in JavaScript: A Guide

The defineProperty() method in JavaScript is a powerful feature of the Object object. It allows you to create or configure properties for an object in a more flexible way. In this blog post, we will explore how to use the defineProperty() method and provide examples to demonstrate its usage. Overview The defineProperty() method serves two main purposes: creating a new object property or configuring an existing property. It offers more control and customization compared to simply assigning a value to a property....

The Definitive Guide to Debugging JavaScript

Debugging is a crucial skill for programmers. Even when we put our best effort into writing code, there can still be issues like crashes, slow performance, or incorrect output. When faced with these situations, the first step is to identify where the problem may be originating from. Is it an environmental issue? Is it related to the input data? Is it a one-time crash caused by excessive memory usage? Or is it happening consistently?...

The Deno Handbook: A Concise Introduction to Deno 🦕

Get up and running quickly with Deno, a modern alternative to Node.js I explore new projects every week, and it’s rare that one catches my attention as much as Deno did. What is Deno? If you are familiar with Node.js, the popular server-side JavaScript ecosystem, then Deno is similar to Node but with several improvements. Here are some of the features I like most about Deno: It is based on modern features of the JavaScript language....

The Developer’s Dilemma: Choosing Between Existing Platforms and Building Your Own

In my quest to find the ideal platform to host my courses, I have encountered a significant issue. Currently, I rely on a static site that integrates with various no-code tools and custom integrations to handle payments and course signups. This setup, often referred to as JAMstack or serverless, has worked well for me. However, as the number of courses I offer has increased, I am now considering the overall infrastructure I use and whether a centralized platform would be a better fit....

The DHT11 Temperature and Humidity Sensor: A Beginner's Guide

The DHT11 temperature and humidity sensor is an essential electronic component often used for building indoor or outdoor thermometers. It is one of the first sensors that beginners learn to use due to its simplicity and practicality. The DHT11 sensor has four output pins, although some breakout boards may only have three. The pins are as follows: Vdd (positive input) Vss (negative input) Output signal The output signal is a 40-bit serialized data that lasts for 4ms....

The Difference Between == and === Equal Operators in JavaScript

Tags: JavaScript, equality operators, type conversion, reference types, value types In JavaScript, there are two different operators, == and ===, that can be used to check for object equality. While these operators may seem similar, there is a significant difference between them that affects how they evaluate equality. The === operator, also known as the strict equality operator, checks for equality of both value and type. If the two values being compared are objects, they must be of the same type in order for the operator to return true....

The Difference Between Asynchronous and Synchronous Code

Node.js, being known for its speed, offers asynchronous APIs for operations like network access or filesystem, making it more efficient compared to languages like PHP or Rails. But what exactly does it mean to have an asynchronous API? An operation is considered asynchronous when it is expected to take a considerable amount of time to complete. By running it asynchronously, other code can continue executing in the meantime, and a designated hook is called when the operation finally ends....

The Differences Between MongoDB and SQL Databases

When it comes to databases, there are two major types to consider: SQL databases and NoSQL databases. If you have experience with databases like MySQL or PostgreSQL, you are likely familiar with SQL, a specific language used to add and retrieve data in these databases. SQL databases have been around since 1986 and have proven to be a reliable technology. On the other hand, NoSQL databases encompass all the databases that do not use SQL for data querying....