Simple javascript demo for https://api.chucknorris.io. Check the fiddle: https://jsfiddle.net/x94e4md8/

chucknorris-client-example.js

 function getJoke() {
    var req = new XMLHttpRequest();
    
    req.onreadystatechange = function() {
        if (4 == req.readyState && 200 == req.status) {
            var reponse = JSON.parse(req.responseText);
            
            console.log(reponse);
         }
    }
	            
    req.open('GET', 'https://api.chucknorris.io/jokes/random', true);
    req.send();
}