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You're reading from  ReactJS by Example - Building Modern Web Applications with React

Product typeBook
Published inApr 2016
Reading LevelIntermediate
PublisherPackt
ISBN-139781785289644
Edition1st Edition
Languages
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Author (1)
Vipul A M
Vipul A M
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Vipul A M

Vipul A M is Director at BigBinary. He is part of Rails Issues Team, and helps triaging issues. His spare time is spent exploring and contributing to many Open Source ruby projects, when not dabbling with React JS. Vipul loves Ruby's vibrant community and helps in building PuneRb, is the founder of and runs RubyIndia Community Newsletter and RubyIndia Podcast, and organizes Deccan Ruby Conference in Pune. He can be found @vipulnsward on twitter and on his site http://vipulnsward.com.
Read more about Vipul A M

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Data flow in React


Shawn and Mark were getting ready to start working on a rainy day with a cup of coffee.

"Hey Mike, I have a question about props that we used to pass the headings and changeSet data to other components."

"Shoot!" Mike exclaimed.

"It seems to me that we are passing data to the components that are below the current component, but how can a component pass the data to the parent component?"

"Ah. In React, by default, all the data flows only in one direction: from parent component to child component. That's it."

This makes the job of the child component simple and predictable. Take props from the parent and render." Mike explained.

var RecentChangesTables = React.createClass({
  render: function(){
    return(<table className = 'table'>
             <Headings headings = {this.props.headings} />
             <Rows changeSets = {this.props.changeSets} />
           </table>);
    }
});

"Let's look at our example. The RecentChangesTables component passes the props...

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ReactJS by Example - Building Modern Web Applications with React
Published in: Apr 2016Publisher: PacktISBN-13: 9781785289644

Author (1)

author image
Vipul A M

Vipul A M is Director at BigBinary. He is part of Rails Issues Team, and helps triaging issues. His spare time is spent exploring and contributing to many Open Source ruby projects, when not dabbling with React JS. Vipul loves Ruby's vibrant community and helps in building PuneRb, is the founder of and runs RubyIndia Community Newsletter and RubyIndia Podcast, and organizes Deccan Ruby Conference in Pune. He can be found @vipulnsward on twitter and on his site http://vipulnsward.com.
Read more about Vipul A M