Javscript, React - Simple React Toggle Example

state = {
showSomething: false
}

toogleSomething = () => {

const holder = this.state.showSomething;
this.setState({showSomething: !holder});

//Holder holds the previous value so that the next time you call the function it will be updated with the other new state value and therefore toggle.

}

Create React App Instructions

install npm
create-react-app

npm install -g create-react-app

or with specific version
create-react-app assignment1 --scripts-version 1.1.5

cd myappname
npm start.