JSFiddle - React, Tailwind, and code Playground

JavaScript

var beijingContentString = '';
        var berlinContentString = '';
        var bronxContentString = '';
        var buenos_airesContentString = '';
        var contentStrings = [
            ['http://www.beijing.com',
            'Beijing title',
            '<img src="./images/beijing.jpg">',
            'Beijing caption',
            'Beijing description'
            ],
            ['http://www.berlin.com',
            'Berlin title',
            '<img src="./images/berlin.jpg">',
            'Berlin caption',
            'Berlin description'
            ],
            ['http://www.bronx.com',
            'Bronx title',
            '<img src="./images/Bronx.jpg">',
            'Bronx caption',
            'Bronx description'
            ],
            ['http://www.buenosaires.com',
            'Buenos Aires title',
            '<img src="./images/Buenos Aires.jpg">',
            'Buenos Aires caption',
            'Buenos Aires description'
            ]
        ];

var beijingString = '';
var berlinString = '';
var bronxString = '';
var bueonosairesString = '';


var contentArrayLoop = 0;

for (contentArrayLoop = 0; contentArrayLoop < 4; contentArrayLoop++) {
     var city = contentStrings[contentArrayLoop][1]
     city = city.substring(0, city.indexOf(' '));
     window[city + 'string'] = contentStrings[contentArrayLoop].join('');
   
    
    
};

alert ('after: ' + Beijingstring);
alert ('after: ' + Berlinstring);
alert ('after: ' + Bronxstring);
alert ('after: ' + Bueonosairesstring);