Decoded Code

Introduction As a new coder, it is important to understand that errors are an inevitable part of the software development process. The ability to handle and manage these errors effectively is a vital skill that can save you time and frustration. In this blog post, we will explore error handling in JavaScript, discuss its importance, and walk through a specific example to help you grasp the concept. What is Error Handling? Error handling is the process of anticipating, detecting, and managing errors that may occur during the execution of a program. When an error is encountered, the program can respond in a controlled manner, rather than crashing or producing unexpected results. This allows developers to maintain the stability of the application and improve user experience. Error Handling in JavaScript JavaScript, like most programming languages, provides a set of built-in mechanisms for error handling. The most common technique involves using "try...catch" statements, which al...

In this blog post, I will create a simple command-line To-Do app in Rust. I will go through the code step-by-step, explaining how each part works. By the end, you will have a basic understanding of Rust and a functioning To-Do app.  Here is the repo for this simple To-Do app. Prerequisites: Basic Rust knowledge Rust installed on your computer Getting Started: First, let's create a new Rust project: cargo new todo_app cd todo_app Now open src/main.rs in your favorite text editor. Importing Necessary Modules: We'll start by importing the necessary modules from the Rust standard library: use std::io::{stdin, stdout, Write}; use std::collections::HashMap; Here's what each module does: std::io::stdin : Reads user input from the standard input stream (usually the keyboard). std::io::stdout : Accesses the standard output stream (usually the console). std::io::Write : Provides the flush() method for output streams, including stdout. std::collections::HashMap : Implements the ...

If you are familiar with JavaScript and are wondering what Node.js is and why it's become such a popular tool among developers, this beginner-friendly blog post will introduce Node.js, explain how it works, and provide a simple example to help you understand its power and potential. Background: Node.js is an open-source, cross-platform runtime environment that allows developers to execute JavaScript code on the server side, outside of the browser. Node.js was created by Ryan Dahl in 2009 to address the limitations of using JavaScript solely in web browsers. Before Node.js, JavaScript was mainly used for client-side scripting, where the code runs in a user's browser. With Node.js, developers can now use JavaScript for both client-side and server-side development, making it a versatile and powerful language for building full-stack applications. How Node.js Works: Node was conceived to make asynchronous programming easy and convenient. This means that Node.js can handle multiple ...

Wondering what async/await  is and how and when to use it? In this article, I will answer these questions as simply as I can. Background: Async/await  is simply a modern way of handling asynchronous operations in JavaScript, making it easier to work with Promises.  Asynchronous operations are tasks that take some time to complete, like fetching data from an API. In JavaScript, there are other ways to handle asynchronous operations, such as: Callbacks - A callback is a function passed as an argument to another function, which is then executed after the completion of an asynchronous operation. Callbacks were the primary method for handling asynchronous operations in earlier versions of JavaScript. However, they can lead to issues like "callback hell" when dealing with multiple nested asynchronous operations, making the code difficult to read and maintain. Promises - Promises are a more modern approach to handling asynchronous operations. A Promise represents the eventual ...