Generate random data in MongoDB

Answer:

You can use the following method to generate random string into a collection in MongoDB:

function randomString() { 
        var chars = 
"0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz"; 
        var randomstring = ''; 
        var string_length = 100;
        for (var i=0; i<string_length; i++) { 
                var rnum = Math.floor(Math.random() * chars.length); 
                randomstring += chars.substring(rnum,rnum+1); 
        } 
        return randomstring; 
} 

for(var i=0; i<2000000; i++){db.test.save({x:i, data:randomString()});}