How to add proxy configuration to VS Code:
- Open VS Code as Administrator
- Open File > Preferences > User Settings
- Add following configuration to the open file.

{
  "http.proxy": "http://userName:password@companyProxyURL:portNumber",
  "http.proxyStrictSSL": false
}

<button onClick={this.handleRemove} value={id}>Remove</button>

handleRemove(event) {
 const id = event.target.value;
 // ...
}

handleChange(param) { //ES-5
    return function (event) { 

    };
}

handleChange = param => event => {//ES-6

};

<input 
    type="text" 
    onChange={this.handleChange(someParam)} 
/>

class App extends Component {
  oneParameter = a => e => {
    alert(a);
  };

  twoParameter = (a, b) => e => {
    alert(a + b);
  };

  render() {
    return (
      <div>
        <button onClick={this.oneParameter(32)}> one parameter </button>
        <br />
        <br />
        <button onClick={this.twoParameter(10, 54)}> two parameter</button>
      </div>
    );
  }
}