search.js

//This file is autogenerated. See modules.json and autogenerator.py for details

/*
    search.js

    MediaWiki API Demos
    Demo of `Search` module: Search for a text or title

    MIT License
*/

var url = "https://en.wikipedia.org/w/api.php"; 

var params = {
    action: "query",
    list: "search",
    srsearch: "Nelson Mandela",
    format: "json"
};

url = url + "?origin=*";
Object.keys(params).forEach(function(key){url += "&" + key + "=" + params[key];});

fetch(url)
    .then(function(response){return response.json();})
    .then(function(response) {
        if (response.query.search[0].title === "Nelson Mandela"){
            console.log("Your search page 'Nelson Mandela' exists on English Wikipedia" );
        }
    })
    .catch(function(error){console.log(error);});