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Serverless Web Applications with React and Firebase
book

Serverless Web Applications with React and Firebase

by Mayur Tanna, Harmeet Singh
April 2018
Intermediate to advanced content levelIntermediate to advanced
284 pages
6h 43m
English
Packt Publishing
Content preview from Serverless Web Applications with React and Firebase

The componentDidCatch() method

This method allows us to catch the JavaScript errors in React Components. We can log those errors and display another fallback UI instead of the component tree that crashed.

Now we have a clear idea about component methods that are available in React Components.

Observe the following JavaScript code snippet:

<section><h2>My First Example</h2></section><script> var root = document.querySelector('section').createShadowRoot(); root.innerHTML = '<style>h2{ color: red; }</style>' +'<h2>Hello World!</h2>';</script>

Now, observe the following ReactJS code snippet:

var sectionStyle = { color: 'red'};var MyFirstExample = React.createClass({render: function() { return (<section><h2 style={sectionStyle}> Hello World!</h2></section> ...
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Publisher Resources

ISBN: 9781788477413Supplemental Content