Book Image

React and React Native

By : Adam Boduch
Book Image

React and React Native

By: Adam Boduch

Overview of this book

para 1: Dive into the world of React and create powerful applications with responsive and streamlined UIs! With React best practices for both Android and iOS, this book demonstrates React and React Native in action, helping you to create intuitive and engaging applications. Para 2: React and React Native allow you to build desktop, mobile and native applications for all major platforms. Combined with Flux and Relay, you?ll be able to create powerful and feature-complete applications from just one code base. Para 3: Discover how to build desktop and mobile applications using Facebook?s innovative UI libraries. You?ll also learn how to craft composable UIs using React, and then apply these concepts to building Native UIs using React Native. Finally, find out how you can create React applications which run on all major platforms, and leverage Relay for feature-complete and data-driven applications. Para 4: What?s Inside ? Craft composable UIs using React & build Native UIs using React Native ? Create React applications for major platforms ? Access APIs ? Leverage Relay for data-driven web & native mobile applications
Table of Contents (27 chapters)

Inline event handlers


The typical approach to assigning handler functions to JSX properties is to use a named function. However, sometimes we might want to use an inline function. This is done by assigning an arrow function directly to the event property in the JSX markup:

import React, { Component } from 'react'; 
 
export default class MyButton extends Component { 
 
  // Renders a button element with an "onClick()" handler. 
  // This function is declared inline with the JSX, and is 
  // useful in scenarios where you need to call another 
  // function. 
  render() { 
    return ( 
      <button 
        onClick={e => console.log('clicked', e)} 
      > 
        {this.props.children} 
      </button> 
    ); 
  } 
} 

The main use of inlining event handlers like this is when you have a static parameter value that you want to pass to another function. In this example, we're calling console.log() with the clicked string. We could have set up a special function for this purpose...