C Operators: An Introduction to Operator Precedence

In the C programming language, there are various groups of operators that can be used to operate on data. In this blog post, we will explore these operators, specifically focusing on arithmetic, comparison, logical, compound assignment, and miscellaneous operators. We will use two imaginary variables, a and b, as examples throughout the post. Arithmetic Operators Arithmetic operators can be classified into two types: binary and unary operators. Binary operators work on two operands, while unary operators work on a single operand....

C Structures: An Introduction

C Structures are a powerful feature in the C programming language that allow you to create complex data structures using basic C types. Unlike arrays, which are limited to a single type, structures can store values of different types, making them highly versatile in many use cases. To define a structure, you use the struct keyword followed by the name of the structure and a set of curly brackets {}. Inside the curly brackets, you can declare variables of different types that will make up the structure....

Caching in HTTP: Optimize Your Network Connections

Caching is an essential technique for improving network connection performance by minimizing data transfer. Retrieving large and expensive resources can significantly impact both time and cost, especially on mobile devices. The HTTP protocol provides various caching strategies that browsers utilize to enhance user experience. 1. No Caching The Cache-Control header offers options to control caching behavior. By specifying no-cache, the browser will always check the ETag value (explained later) before utilizing a cached version of a resource....

Calculating Ampere-hours (Ah) from Watts: A Guide

Introduction: In this blog, we will explore how to calculate the number of hours you can run a device using a battery’s capacity in Ampere-hours (Ah) and Watts (W). Specifically, we will consider the scenario of running a hair dryer through a power inverter using a 12V 100Ah battery in a van. Calculation Formula: To determine the number of hours you can run a device, we will use the following formula: Wh / V, where Wh represents Watt-hours and V represents Volts....

Can React hooks be used inside a conditional?

No, React hooks cannot be used directly inside a conditional statement. While it may seem like a viable solution to conditionally call a hook based on a certain condition, it is not technically possible. During the rendering phase, Hooks need to be called in the same order on every render. React uses the order of hooks to ensure consistency and prevent bugs. Placing a hook inside a conditional can disrupt this order and lead to errors....

Can You Nest Functions in C?

In this blog post, we will explore the topic of nesting functions in C and whether it is a possibility. Nesting functions refers to the act of defining functions inside other functions, which is a common practice in languages like JavaScript, Swift, and Python. However, in the case of C and C++, this option is not available. Unlike many other programming languages, C does not support the nesting of functions. It is not permissible to define functions inside other functions in C....

Chaining Method Calls in JavaScript: Simplify Your Code

Chaining method calls in JavaScript can be a convenient way to simplify your code. Instead of writing separate lines for each method call, you can chain them together in a single line. For example, instead of writing: car.start(); car.drive(); you can chain the calls like this: car.start().drive(); This one-liner provides a cleaner and more concise way to execute multiple methods on an object. To enable method chaining, each method must return the object itself....

Changing the favicon in dark mode

How to display a different favicon in dark or light mode If you have a Mac set up to automatically switch between dark and light mode, you may have encountered the issue of having a white favicon that becomes almost invisible in light mode. Let’s explore how we can add a favicon in dark mode and a different one in light mode. Unfortunately, there isn’t a straightforward way to achieve this for PNG/JPG bitmap images....

Changing the Favicon in Gatsby

If you’re building a website using Gatsby and you want to change the favicon, it’s a simple process. Here’s how you can do it: By default, the favicon is set to static/favicon.ico. All you need to do is replace this file with your desired favicon image. If you’re using the gatsby-plugin-sharp plugin, the default favicon is src/images/gatsby-icon.png. However, you can customize this path and format. For instance, you can use an SVG image for your favicon....

Changing the Heroicons SVG Stroke Width in React

I recently came across the Heroicons library while working on a Next.js app. I was impressed by the convenience of using the icons as React components. However, I wanted to customize the stroke width of the icons to make them thinner. At first, I tried to achieve this within the JSX code by using a prop, but I couldn’t find a way to do it. Then, I considered importing the SVG directly from the Heroicons website, but I preferred the React components approach....