React script assistance

JavaScript
1

Where is My Component being called the first time in the following script?

Import React from 'react';
import { render } from 'react-dom';

import MyComponent from './MyComponent';

const myComponent = render(<MyComponent />, document.getElementById('root'));

setTimeout(() => {
  myComponent.setState({
    heading: 'React Awesomesauce',
    content: 'Done!'
  });
}, 3000);

Thx!

2

Not to be rude, but it shouldn’t matter because you should only talk to your components through their props not by manipulating their state directly.

I don’t think this code will even work, but if it does it probably has issues with hook based components which are the suggested method for building components.

3

Hi it’s just an example from a book - they are building up to the correct method and demonstrating points along the way - I think o get it .

They call the function and assign it to a variable after (I think)

4

Generally speaking though – set a breakpoint (or put a debugger statement) in the constructor and examine the call stack in your brwoser dev tools. :-)

5

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