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Our step-by-step process for designing and developing new applications.
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A high level overview of FullStack Labs, who we are, and what we do.
A JavaScript framework that allows rapid development of native Android and IOS apps.
A JavaScript framework maintained by Facebook that's ideal for building complex, modern user interfaces within single page web apps.
A server side programming language known for its ease of use and speed of development.
A lightweight and efficient backend javascript framework for web apps.
An interpreted high-level programming language great for general purpose programming.
A JavaScript framework maintained by Google that addresses many of the challenges encountered when building single-page apps.
A JavaScript framework that allows developers to build large, complex, scalable single-page web applications.
A progressive JavaScript framework known for its approachability, versatility, and performance.
A progressive JavaScript framework known for its approachability, versatility, and performance.
A progressive JavaScript framework known for its approachability, versatility, and performance.
A progressive JavaScript framework known for its approachability, versatility, and performance.
A progressive JavaScript framework known for its approachability, versatility, and performance.
A progressive JavaScript framework known for its approachability, versatility, and performance.
A progressive JavaScript framework known for its approachability, versatility, and performance.
View a sampling of our work implemented using a variety of our favorite technologies.
View examples of the process we use to build custom software solutions for our clients.
View projects implemented using this javascript framework ideal for building complex, modern user interfaces within single page web apps.
View projects implemented using this framework that allows rapid development of native Android and IOS apps.
View projects implemented using this backend javascript framework for web apps.
View projects implemented using this high-level programming language great for general purpose programming.
View projects implemented using this server side programming language known for its ease of use and speed of development.
We have vast experience crafting healthcare software development solutions, including UI/UX Design, Application Development, Legacy Healthcare Systems, and Team Augmentation. Our development services help the healthcare industry by enhancing accessibility, productivity, portability, and scalability.
We offer a range of custom software development solutions for education companies of all sizes. We're experts in Education Software Development and specialists in enhancing the learning experience across web, mobile, and conversational UI.
We're experts in developing Custom Software Solutions for the Logistics Industry. Our work offered a whole new and more efficient way for Logistics companies to manage their crucial operations.
We partner with various construction industry organizations to build custom software development solutions. Our Construction Software Development Services allow construction companies to manage projects, resources, and documentation.
We have vast experience crafting healthcare software development solutions, including UI/UX Design, Application Development, Legacy Healthcare Systems, and Team Augmentation. Our development services help the healthcare industry by enhancing accessibility, productivity, portability, and scalability.
We offer a range of custom software development solutions for education companies of all sizes. We're experts in Education Software Development and specialists in enhancing the learning experience across web, mobile, and conversational UI.
We're experts in developing Custom Software Solutions for the Logistics Industry. Our work offered a whole new and more efficient way for Logistics companies to manage their crucial operations.
We partner with various construction industry organizations to build custom software development solutions. Our Construction Software Development Services allow construction companies to manage projects, resources, and documentation.
Learn more about our current job openings and benefits of working at FSL.
Detailed reviews and feedback from past and current clients.
Get to know the Management Team behind FullStack Labs.
Our step-by-step process for designing and developing new applications.
Writings from our team on technology, design, and business.
Get answers to the questions most frequently asked by new clients.
Learn about our company culture and defining principles.
A high level overview of FullStack Labs, who we are, and what we do.
A JavaScript framework that allows rapid development of native Android and IOS apps.
A JavaScript framework maintained by Facebook that's ideal for building complex, modern user interfaces within single page web apps.
A server side programming language known for its ease of use and speed of development.
A lightweight and efficient backend javascript framework for web apps.
An interpreted high-level programming language great for general purpose programming.
A JavaScript framework maintained by Google that addresses many of the challenges encountered when building single-page apps.
A JavaScript framework that allows developers to build large, complex, scalable single-page web applications.
A progressive JavaScript framework known for its approachability, versatility, and performance.
A dynamic programming language used in all sorts of web and mobile applications.
A cross-platform programming language designed to run robust applications on any device.
A UI toolkit used to build natively compiled applications from a single codebase.
A functional programming language that’s ideal for scalability, maintainability, and reliability.
A Customer Relationship Management (CRM) platform that seamlessly integrates with your business operations.
A high-performance programming language that makes it easy to build simple, reliable, and efficient software.
View a sampling of our work implemented using a variety of our favorite technologies.
View examples of the process we use to build custom software solutions for our clients.
View projects implemented using this javascript framework ideal for building complex, modern user interfaces within single page web apps.
View projects implemented using this framework that allows rapid development of native Android and IOS apps.
View projects implemented using this backend javascript framework for web apps.
View projects implemented using this high-level programming language great for general purpose programming.
View projects implemented using this server side programming language known for its ease of use and speed of development.
Angular to React - Getting Started
I recently built my first few React apps after years of working with Angular. Making the switch from Angular to React requires a mindset change that can be difficult and time consuming. These frameworks take fundamentally different approaches to frontend development. For example, Angular offers a complete ecosystem, while React requires integration with external libraries to provide similar functionality.
Below is the first article of a six-part guide to help ease the transition from Angular to React. Over the course of the series, we will rebuild Angular’s starter app example in React, covering each section of the Angular Starter docs in a separate article. These articles will cover set up, routing, managing data, forms, and deployment. Happy coding! :D
Angular has a defined code structure, as components are broken into separate templates, styles, and JavaScript files. The template uses HTML, the styles use CSS/SCSS/SASS, and the JavaScript file uses Typescript. This structure allows backend developers to generate users interfaces with code that is familiar to them.
In React, on the other hand, allows developers full freedom to define the structure of their projects. They can combine the templates, styles and business logic into a single Javascript file, separate each into different files, or set an entirely new structure.
To refresh your Angular vocabulary, take a quick look at the glossary here. Below are some key React.js terms you’ll need to know to get started:
-- CODE language-jsx keep-markup --
<myhair color="blue"> </myhair>
My Head
Compiled JavaScript:
-- CODE language-jsx keep-markup --
React.createElement(
MyHair,
{color: 'blue'},
'My Head'
)
-- CODE language-jsx keep-markup --
/* Functions Mode looks like: */
functionMyHair(props) {
return<h1>My hair is, {props.color}</h1>;
}
/* Class Mode looks like: */
classMyHairextendsReact.Component {
render() {
return<h1>My hair is, {props.color}</h1>;
}
}
For this tutorial, we will be rebuilding Angular’s official starter store app using React. Follow the starter app instructions for generating a repo with StackBlitz, then go here and fork the project.
With the initial configuration, the app should look like:
Our first step is to translate Angular HTML syntax to React JSX syntax. In Angular, components are generated with @Component:
-- CODE language-jsx keep-markup --
@Component({
selector: 'app-top-bar'
})
Angular automatically creates a wrapping HTML element using the value of selector. In this case the wrapping HTML element will look like this:
-- CODE language-jsx keep-markup --
<app-top-bar></app-top-bar>/* The content of the HTML File */
Creating components in React is slightly different for two reasons. One, React simply returns JSX without creating any extra wrapper elements. Second, the Angular HTML syntax is not valid JSX and will throw an error. Therefore, we will need to rewrite this component to work with React. To accomplish this we can simply replace <app-top-bar></app-top-bar> with a <div></div>:
-- CODE language-jsx keep-markup --
<div> {</div>/*The content of the HTML*/}
Although we now have a valid JSX component, the styles in `style.css` are no longer being applied to the element. To fix this we need to add a CSS class to our element. In React, CSS classes are added to elements using the className prop rather than the normal HTML class attribute. You can read more about styling in React here.
Follow the steps below to update our Angular component to a React Component using what we learned above:
At this point, the app should look like:
In React, there are no specific directives to iterate in JSX, we can simply iterate using JavaScript. To render the products in the ProductList component, do the following steps:
-- CODE language-jsx keep-markup --
{products.map(product => {
return (
<div></div>
<h3></h3>
<a title="{`${product.name}" details`}=""> </a>
{ product.name }
)
})}
With those changes in place, the app should look like:
Remember, everything in React is JavaScript. The information about products is present in the products variable. Therefore, we can use the Array.map to generate the required JSX code.
Notice the anchor element takes a “title” prop which is defined using curly braces. This allows JSX to execute a JavaScript expression. In this example, we are generating the title using the literal string.
To conditionally render an element in React, we should use one of the following options: 1) An if else statement, 2) A ternary conditional or 3) Use the short-circuit evaluation technique
-- CODE language-jsx keep-markup --
{product.description &&<p>{`Description: ${product.description}`}</p>}
-- CODE language-jsx keep-markup --
{product.description ? <p>{`Description: ${product.description}`}</p> : null}
-- CODE language-jsx keep-markup --
/* in the function body */
let description;
if (product.description) {
description = <p>{`Description: ${product.description}`}</p>
}
/* Bellow the h3 closing tag */
{description}
The app should look like:
With JSX, developers will have access to the HTML events directly in the element. To execute the function share() after clicking a Button, do the following:
-- CODE language-jsx keep-markup --
<button onclick="{share}"></button>
Share
After click in the Button, the app looks like this:
The component system in React consists of functions that return the required JSX code. The params of the function are the props received by the component, and the template is the JSX returned statement. To generate a new React element, do the following:
-- CODE language-jsx keep-markup --
import React from 'react';
import {products} from './products';
const ProductAlerts = ({ product }) => {
let productAlerts;
if (product.price > 700) {
productAlerts = <p><button>Notify Me</button></p>;
}
return<div classname="product-alerts">{productAlerts}</div>
};
exportdefault ProductAlerts;
-- CODE language-jsx keep-markup --
import ProductAlerts from ‘./ProductAlerts’;
-- CODE language-jsx keep-markup --
<productalerts product="{product}"></productalerts>
The app should look like:
We are generating a new React component. A React component is a JavaScript file that imports React and exports a function which returns JSX code. In the ProductList file, we are providing the prop product. It allows us to use that variable inside the ProductsAlerts through the params of the function.
Let’s start this section saying that output concept of Angular doesn’t exist in React. The communication between components occurs in one way. However, it is possible to execute a method of the parent component providing a reference of the method to the child component.
-- CODE language-jsx keep-markup --
const onNotify = () => {
window.alert('You will be notified when the product goes on sale');
}
-- CODE language-jsx keep-markup --
<productalerts product="{product}" notify="{onNotify}"></productalerts>
-- CODE language-jsx keep-markup --
const ProductAlerts = ({ product, notify }) => {
/* Attach the click event, providing the prop received into the onClick prop of the Button. */
<button onclick="{notify}">Notify Me</button>
Now, if you click in the notify button the app should looks like:
In JavaScript, when we reassign a function into a variable, we are not creating a new instance of the function but a reference. Hence, if we execute notify() inside the ProductAlerts component, the onNotify function is executed.
I hope you find this information useful for your transition to React. In the next part of this six-part series, we will continue to use the starter project above to learn more about routing in React.
---
At FullStack Labs, we pride ourselves on our ability to push the capabilities of cutting-edge frameworks like React. Interested in learning more about speeding up development time on your next project? Contact us.
We’d love to learn more about your project.
Engagements start at $75,000.