You should learn Redux and ReactRedux library.It will structure your states and props in one store and you can access them later in your components .

Solution
run npm install (or yarn) to ensure all deps are downloaded.

Alternative Solution
If node_modules exists, remove it with rm -rf node_modules and then run npm install (or yarn).

Looks like you're accidentally calling the handleButtonChange method in your render method, you probably want to do onClick={() => this.handleButtonChange(false)} instead.

If you don't want to create a lambda in the onClick handler, I think you'll need to have two bound methods, one for each parameter.

In the constructor:
***
this.handleButtonChangeRetour = this.handleButtonChange.bind(this, true);
this.handleButtonChangeSingle = this.handleButtonChange.bind(this, false);
***
And in the render method:
***
Retour
Single Journey
***

If you want to take a component class as a parameter (vs an instance), use React.ComponentClass:
***
function renderGreeting(Elem: React.ComponentClass) {
return Hello, !;
}
***

Before v0.14 they were part of main ReactJs file, but as in some cases we may not need both, they separate them and it starts from version 0.14, that way if we need only one of them, our app gonna be smaller due to using only one of those:
***
var React = require('react'); /* importing react */
var ReactDOM = require('react-dom'); /* importing react-dom */

var MyComponent = React.createClass({
render: function() {
return ;
}
});

ReactDOM.render(, node);
***
React package contains: React.createElement, React.createClass, React.Component, React.PropTypes, React.Children

React-dom package contains: ReactDOM.render, ReactDOM.unmountComponentAtNode, ReactDOM.findDOMNode, and react-dom/server that's including: ReactDOMServer.renderToString and ReactDOMServer.renderToStaticMarkup.

Restart your IDE. Sometimes tsconfig.json changes aren't immediately picked up ????

***
const [counter, setCounter] = useState(0);

const doSomething = () => {
setCounter(123);
}

useEffect(() => {
console.log('Do something after counter has changed', counter);
}, [counter]);
***

***
class Component extends React.Component {
static getDerivedStateFromProps(props, current_state) {
if (current_state.value !== props.value) {
return {
value: props.value,
computed_prop: heavy_computation(props.value)
}
}
return null
}
}
***

Run webpack-dev using this
***
webpack-dev-server --host 0.0.0.0 --port 80
***
And set this in webpack.config.js
***
entry: [
'webpack-dev-server/client?<0.0.0.0:80>',
config.paths.demo
]
***
Note If you are using hot loading, you will have to do this.

Run webpack-dev using this
***
webpack-dev-server --host 0.0.0.0 --port 80
***
And set this in webpack.config.js
***
entry: [
'webpack-dev-server/client?<0.0.0.0:80>',
'webpack/hot/only-dev-server',
config.paths.demo
],
***
....
plugins:[new webpack.HotModuleReplacementPlugin()]

For a RESTful HTTP POST containing XML:

curl -X POST -d @filename.txt examplewebsite/path/to/resource --header "Content-Type:text/xml"

or for JSON, use this:

curl -X POST -d @filename.txt examplewebsite/path/to/resource --header "Content-Type:application/json"

This will read the contents of the file named filename.txt and send it as the post request.

Well, you should consider the proper way to set scrolling: add in your ~/.tmux.conf
***
set -g mouse on #For tmux version 2.1 and up
***
or
***
set -g mode-mouse on #For tmux versions < 2.1
***
It worked for me in windows and panes. Now tmux is just perfect.

You can get information from the microphone by doing something like:
***
arecord -d1 /dev/null -vvv
***
You might have to play with the settings a little, such as:
***
arecord -d1 -Dhw:0 -c2 -fS16_LE /dev/null -vvv
***
From there on out, it's a simple matter of parsing the output.