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How to Manage State in Flutter Apps

Managing state is something most developers need to deal with when working on applications. You might be familiar with the model-view-viewmodel (MVVM) pattern, where the ViewModel is the one responsible for a view’s state. But in Flutter, things are a bit different. If you are reading this, then

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Train an IA to Play a Snake Game Using Python

Why waste time playing video games when you can train an AI to do it for you? Ok, maybe playing yourself is more fun but training an AI can be more educational. We just published a course on the freeCodeCamp.org YouTube channel that will teach you the basics of reinforcement

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How to Test Your Apps using Jest, Testing Library, Cypress, and Supertest

Hi everyone! In this article we're going to talk about testing. I'll give you a good overview of what testing is and an introduction of how you can implement it on your JavaScript projects. We'll use four very popular tools – Jest, Testing library, Cypress and Supertest. First we're going

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How to Check if a Property Exists in a JavaScript Object

When you are working with objects in JavaScript, you might need to check if a specific property exists or not. In this article, I will show you three ways to check if a property exists in a JavaScript object. How to Use the hasOwnProperty() Method in JavaScript The

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3 Simple Techniques That Save Me +10 Hours Weekly On Writing

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How to Speed Up Your Lambda Functions

Lambda has gained massive popularity over the past few years. It has various use cases, from running simple scripts to gluing flows and processes within a serverless architecture or when running microservices. Still, if you've just started working in a new environment or organisation, you might feel cautious about using

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I Met a Bestselling Author, and She Gave Me Some Solid Content Creation Advice

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Data Analysis in Go – How to Use the Gota Package

Data analysis is the process of filtering, manipulating, and processing raw data and datasets to get insights from them. Python and R are usually the go-to languages for data analysis. But these days Go is becoming more and more popular for this purpose. In this tutorial, we will be

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module.exports – How to Export in Node.js and JavaScript

In programming, modules are components of a program with one or more functions or values. These values can also be shared across the entire program and can be used in different ways. In this article, I will show you how to share functions and values by exporting and importing modules

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How to Use Sass with CSS

Hi there! If you are reading this article, you're probably trying to understand what Sass is and how it works. Sass is a CSS preprocessor that helps you manage tasks in large projects where the style sheets get larger, you have a number of lines of CSS code, and

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CSS Variables Definition – What are CSS Vars and How to Use Them?

CSS variables are custom variables that you can create and reuse throughout your stylesheet. In this article, I will show you how to create CSS variables on the :root pseudo selector and show you how to access them using the var() function. How to Create a CSS Custom

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To Be The Go-To Consultant in Your District- Spend 50% of Your Time Away From Your Clients

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How to Debug Applications with Strace, Python, and Wireshark

In this article I will show you a few techniques you can use to troubleshoot a program when is not behaving. This list is not universal and, depending on what you are looking for, it may not be enough to solve your problem. But it should be a good

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How To Turn Losing A Client Into New Business Opportunities

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Every Freelancer Needs to Understand: Your Value is All About Perception

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The Only 3 Writing Income Streams You’ll Ever Need

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The Most Important Money Lessons People Often Learn Too Late in Life

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How to Create Reusable SVG Icon React Components

We use icons when building frontend applications all the time – for indications, pointers, and so on. Here's how to create a reusable React component for icons. When it comes to icons, you can use PNG or SVG images. PNGs come with a fixed color but allow dimension changes (like

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Python For Loop Example – How to Write Loops in Python

If you are just getting started in Python, for loops are one of the fundamentals you should learn how to use. In the Python programming language, for loops are also called “definite loops” because they perform the instruction a certain number of times. This is in contrast to while loops,

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Text Align in CSS – How to Align Text in Center with HTML

There will be many times where you will need to center some text using HTML and CSS. But what is the best way to go about that? In this article, I will show you how to use the text-align property in CSS and show you how to vertically align text

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JavaScript Wait – How to Sleep N Seconds in JS with .setTimeout()

Sometimes you might want to delay the execution of your code. You may need certain lines of code to execute at a point in the future, when you explicitly specify, rather than all the code executing synchronously. Something like that is possible with JavaScript. In this article, you will learn

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