Thursday, December 8

Web Tricks

Web Tricks

Build a React To-Do App with React Hooks (No Class Components)

Yes, a to-do app, seems like something we’ve all done in the past. The great thing about a to-do app is that it covers all 4 aspects of CRUD; Create, Read, Update, Delete. As a developer, we need to know CRUD and a to-do app is the best way to start that learning or refresh some of the things we may be a little rusty on.React is the frontend JavaScript library we are going to be using today. Whether you are new to React or are an avid React user, we can all agree on one thing: React is pretty great.We've already done a React To-Do App here, but that was with Class components. Today we will have no Class components by integrating React Hooks, React’s newest upgrade feature. Let’s get started.  React Hooks React is always improving and growing. The latest update is React 1...
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CSS Frameworks Or CSS Grid: What Should I Use For My Project?

Among the questions I am most frequently asked is some variety of the question, “Should I use CSS Grid or Bootstrap?” In this article, I will take a look at that question. You will discover that the reasons for using frameworks are varied, and not simply centered around use of the grid system contained in that framework. I hope that by unpacking these reasons, I can help you to make your own decision, in terms of what is best for the sites and applications that you are working on, and also for the team you work with.In this article when I talk about a framework, I’m describing a third party CSS framework such as Bootstrap or Foundation. You might argue these are really component libraries, but many people (including their own docs) would describe them as a framework so that is what we ...
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Implementing Smooth Scrolling in React

Smooth Scrolling, dont know what it is? Well, instead of clicking on a button and being instantly taken to a different part of the (same) page, the user is navigated there via a scroll animation. It's one of those subtle features on a site that makes an incredible difference in terms of aesthetics. I personally just implemented this on one of my personal sites because I love the look and feel it provides to the user.That said, even though smooth scrolling might be subtle, it can be a bit tricky to implement yourself. Because of that, in this article, we are going to use the react-scroll package on NPM. Using react-scroll We'll be building a simple app in this tutorial, but if you want a quick rundown of how react-scroll works: Install react-scroll npm i -S react-scroll Import the ...
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Get to Know Framer X: The React UI Creator

In this post we will explore Framer X, the new shiny design tool and try to make sense of its benefits as well as its capabilities.Prerequisites: This post assumes that you have basic knowledge of React. What is Framer X? Framer X is the latest and greatest version of Framer Studio, the prototyping tool.Framer Studio when initially released, gave designers the ability to create realistic app prototype designs and animate very advanced interactions than other design apps at the time.Framer X, the newest version of Framer introduces the in-built use of React components to allow designers get closer to high-fidelity prototyping.Framer X also has all the features you need to draw everything from custom icons to intricate illustrations. You could fine-tune your designs...
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Improve Animated GIF Performance With HTML5 video

Animated GIFs have a lot going for them; they’re easy to make and work well enough in literally all browsers. But the GIF format was not originally intended for animation. The original design of the GIF format was to provide a way to compress multiple images inside a single file using a lossless compression algorithm (called LZW compression) which meant they could be downloaded in a reasonably short space of time, even on slow connections.Later, basic animation capabilities were added which allowed the various images (frames) in the file to be painted with time delays. By default, the series of frames that constitute the animation was displayed only once, stopping after the last frame was shown. Netscape Navigator 2.0 was the first browser to added the ability for animated GIFs to loop...
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These 2 Unpopular Functions Will Improve How You Manipulate JavaScript Array Data

JavaScript has come a long way, it's progressively evolving at a compelling rate and winning an army of followers by the day. The modern JavaScript developer is arguably grappling with increased complexity than a few years ago, but is more armed with better native language features, a solid tooling ecosystem and a vibrant community. Introduction ES5 and ES6 brought a ton of improvements to JavaScript, including better ways of working with a collection of data expressed as arrays. While the language has significantly improved support for declarative data manipulation on arrays, and modern browser support for them continue to be great, JavaScript developers are only adopting a limited subset of array capabilities - generally excluding those that should further improve how they manipulate a...
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How To Implement Parent-Child Relationship in MySQL

If the first time you heard this phrase “parent-child relationship in MySQL”, you went “Ok, anyone else got cool made up names or are we to start brainstorming now”, then this article is for you. For the uninitiated, this might not make much sense. That’s perfectly fine because you do not necessarily need it everyday.Parent-child relationship in MySQL has to deal with establishing some hierarchal dependencies between records in a database table. In MySQL terms, it means say that “row 12 is the parent of row 14” and stuff like that. In business terms, it will mean establishing a dependency relationship between two similar entities. For example, keeping a record of all the people in a village and matching parents to their children.So, whenever you hear that phrase, think about a real...
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GraphQL – The Good and the Bad

GraphQL is a query language for APIs and a runtime for fulfilling those queries with your existing data. GraphQL provides a complete and understandable description of the data in your API as well as gives clients the power to ask for exactly what they need and nothing more.It makes it easier to evolve APIs over time and enables powerful developer tools. At least that's what we all know it to be. In this post, we'll look at all the wonderful things about GraphQL and also look at the unpopular "not so good" things about it. Let's kick it off with the good parts :) The Good Exact data fetching The importance and usefulness of GrphQL exact data fetching feature cannot be overemphasized. With GraphQL, you can send a query to your API and get exactly what you need, nothing more and nothin...
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Using Create React App v2 and TypeScript

Now that Create React App v2 is out, official TypeScript support comes with it. This is an exciting thing for JavaScript users that use TypeScript. TypeScript is a powerful tool that helps us write safer and self-documenting code. We can catch bugs faster with TypeScript.Many people have opinions about TypeScript, good and bad, but it's a good idea to give it a chance. For this article, we'll focus on getting a Create React App up with TypeScript and we'll do a larger project where we use TypeScript and React together in a future article.  Starting a TypeScript Create React App This is the easiest part! npx create-react-app my-typescript-app --typescriptWhat packages does the --typescript flag get us and what changes does it make? The TypeScript Additions The --type...
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4 Uses of JavaScript’s Array.map() You Should Know

From the classic forloop to the forEach() method, various techniques and methods used to iterate through datasets abound JavaScript. However, one of the more popular methods is the .map() method..map() creates an array from calling a specific function on each item in the parent array. .map() is a non-mutating method in that it creates a new array as against mutating methods which only make changes to the calling array. This can be tricky to remember.In this post, we'll look at 4 noteworthy uses of the .map() in JavaScript. Let's begin!  Calling a Function on Each Item in an Array .map() as earlier stated accepts a callback function as one of its arguments and an important parameter of that function is the current value of the item being processed by the function. This is...
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Getting Started with React Hooks

React Hooks are a great new feature coming in React 16.7. React 16.6 brought some awesome new things like React.memo() and React.lazy and Suspense. The React team isn't stopping there.Hooks are a feature that you'll end up using every single day of your React development. You can give them a try in React 16.7.0-alpha right now and are being discussed in an open RFC. Hooks are great because we get more tools as React developers.If you want to use state or lifecycle methods you would normally have to change to using React.Component and classes. Hooks let us use these features in functional components!  What are Hooks? React Hooks are a way to add React.Component features to functional components. Features like:State LifecycleHooks let you use React's features ...
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What’s New in React 16.6

React version 16.6 is out and it comes packed with some useful new features that are very much worth getting excited about. It's a minor release with major features focused on performance optimization. The main new features include:React.memo() React.lazy() static contextType() static getDerivedStateFromError() a number of deprecations in StrictModeLet's take a look into what each of these features adds to React.React.memo()React.memo() is the functional component solution to React.PureComponent as used in class components. It's a higher order component that is wrapped around functional components to create memoized components.   The result is a component that only rerenders when it's props change, acting kind of like shouldComponentUpdate(). Using m...
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How to implement multiple user authentications using Laravel Guards

Introduction As developers, there are couple of times where your application will require different type of users. Take for instance you're building a Hospital Management software and you need both Doctors and Patients to be entirely unique users. How do you handle registration and authentication for both users in such a scenario? Laravel makes it easy to authenticate against multiple user models by using guards and providers.  Guards and Providers Before we dive into building our app, let's understand the concepts behind Guards and Providers which are essentially the building blocks of implementing multiple user authentication in Laravel. What are Guards? Guards can be seen as a way of identifying authenticated users. Laravel ships with two default guards - weband apiwith pr...
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Use the React Profiler for Performance

With React, building high performance web applications became very easy because of the framework's re-rendering on the JavaScript virtual DOM, which helps it to quickly determine the changes needed when a user event is occurring. When writing complex application with React you will run into some performance issues, either because the application re-renders when it really doesn’t need to or because the states aren’t being handled properly, amongst other reasons.  What exactly is regarded a high performance application? Performance is really important when dealing with a complex application or any application. In fact if your application doesn't cover 60 frames per second (fps) which would give it like 16.7ms per frame, it is more than likely underperforming with regards to the st...
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React 16.6: React.memo() for Functional Components Rendering Control

React 16.6.0 is released! With it comes a host of new features including the two big ones:React.memo() React.lazy(): Code-splitting and lazy-loading with React SuspenseWe'll focus on React.memo() for this article and React.lazy() and Suspense in an upcoming larger article.  What is React.memo()? React.memo() is similar to PureComponent in that it will help us control when our components rerender. Components will only rerender if its props have changed! Normally all of our React components in our tree will go through a render when changes are made. With PureComponent and React.memo(), we can have only some components render. const ToTheMoonComponent = React.memo(function MyComponent(props) { // only renders if props have changed }); This is a performance bo...