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React 16 Tooling
book

React 16 Tooling

by Adam Boduch, Christopher Pitt
April 2018
Intermediate to advanced content levelIntermediate to advanced
298 pages
6h 34m
English
Packt Publishing
Content preview from React 16 Tooling

Manipulating element state values

React Developer Tools lets you inspect the current state of elements that you select. You can also monitor state changes as they happen, as was demonstrated in the preceding section where you had set up an interval timer that changed the state of your element over time. The state of an element can also be manipulated in limited ways.

For this next example, let's modify the MyList component to remove the interval timer and simply populate the state when it's constructed:

import React, { Component } from 'react'; 
import MyItem from './MyItem';class MyList extends Component { 
  timer = null; 
  state = { 
    items: new Array(10).fill(null).map((v, i) => ({ 
      label: 'Item ${i + 1}', 
      strikethrough: false })) }; onItemClick ...
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Publisher Resources

ISBN: 9781788835015Supplemental Content