DellWard

function getBetweenTwoSets(a1, a2) {

    function gcd(a, b){
        while(b > 0){
            var temp = b;
            b = a % b;
            a = temp;
        }
        return a
    }

DellWard

handleChange = type => event => {
  const {value} = event.target;
  this.setState({[type]: value});
}

//Example
<TextField value={this.state.name} onChange={this.handleChange('name')} />

DellWard

//fetching with query parameters
var url = new URL("https://geo.example.org/api");
var params = {lat:35.696233, long:139.570431};
Object.keys(params).forEach(key => url.searchParams.append(key, params[key]))
fetch(url).then(/* … */)

// Get request with error handling
fetch('https://api.github.com/users/someEndPoint')
 .then(response => {
  if (response.ok) {