In this blog, we will learn how to perform various types of HTTP requests (GET, POST, PUT, DELETE) using Node.js. Please note that throughout this article, we will be using HTTPS instead of HTTP for more secure connections. Performing a GET Request To perform a GET request, we can use the built-in https module in Node.js. Here’s an example code snippet: const https = require('https'); const options = { hostname: 'flaviocopes....
A common question I received on Twitter recently was how to go from tutorials to actually working on projects. This is an interesting topic because I firmly believe that true mastery of a technology comes from building something with it, rather than just reading or watching tutorials. However, tutorials still play an essential role in the learning process. Nobody is born knowing how to use a particular technology. We need to be taught, dig into documentation, or even understand how things are supposed to work by working with open source software....
In this blog post, we will explore how to effectively manage cookies using the Response.cookie() method in Express. Cookies are small pieces of data that are stored on the client-side and are commonly used for tracking user sessions, maintaining user preferences, and personalizing web experiences. Using the Response.cookie() Method The Response.cookie() method allows you to set or manipulate cookies in Express. It takes two required parameters: the name of the cookie and its value....
Learn how to handle and store files uploaded via forms in Express. This is an example of an HTML form that allows users to upload files: <form method="POST" action="/submit-form" enctype="multipart/form-data"> <input type="file" name="document" /> <input type="submit" /> </form> Don’t forget to include enctype="multipart/form-data" in the form, otherwise files won’t be uploaded. When the user presses the submit button, the browser will send a POST request to the /submit-form URL on the same origin of the page....
In Svelte, handling state updates within a component is straightforward and doesn’t require any special configuration. You can simply use reactive assignments to update the component’s state. For instance, let’s consider a count variable that needs to be incremented. This can be done using the assignment count = count + 1 or count++: <script> let count = 0; const incrementCount = () => { count++; }; </script> {count} <button on:click={incrementCount}>+1</button> If you’re familiar with modern web frameworks like React or Vue, this approach may seem familiar....
Maps, also known as dictionaries, hash maps, or associative arrays in other languages, are an essential data type in Go. They provide a convenient way to store and retrieve key-value pairs. In this blog, we will explore the basics of maps in Go and how to effectively use them in your code. Creating a Map To create a map in Go, you simply use the make function with the appropriate type initialization....
As a developer, one of the most valuable skills you can possess is the ability to solve problems. However, it is important to understand that no developer knows everything about a particular technology. There will always be areas that you are unfamiliar with or have limited knowledge in. Knowing how to find solutions and ask for help in these situations is crucial for your growth as a developer. So, how do you go about finding answers to your programming problems?...
A multimeter is an essential tool for measuring voltage, current, and resistance in electronic circuits. Whether you’re a beginner or an experienced technician, having a reliable multimeter is important for accurate measurements. There are various types of multimeters available on the market, ranging from inexpensive options to more professional-grade models. While you don’t necessarily need to invest in a high-end multimeter to get started, it’s worth considering one that offers good build quality and features....
Memoization is a technique that allows you to significantly improve the performance of your JavaScript applications. While this technique is not unique to JavaScript, this article will focus on providing JavaScript examples. In simple terms, memoization involves storing the result of a function call and returning it when the function is called again with the same input. It can be thought of as caching for functions. So why is memoization useful?...
In Go, a function can be assigned to a struct, giving it the ability to perform actions related to its data. This concept is known as a method. Let’s take a look at an example: type Person struct { Name string Age int } func (p Person) Speak() { fmt.Println("Hello from " + p.Name) } func main() { flavio := Person{Age: 39, Name: "Flavio"} flavio.Speak() } In this example, we define a Person struct with two fields, Name and Age....