nodejs loop array to create object

Question

I try to create a

html element for each element in an array but It doesn't work can you help me ?

my node js code :

con.connect(function(err) {
    // if (err) throw err;
    console.log("Connected!")
    con.query( 'SELECT * FROM `commentairesapplicationscommunautaire` ', function (error, results, fields) {
        for (var i = 0; i < results.length; i++){
            var zeuzryueartt = results[i].contenu
            console.log(zeuzryueartt)
            res.end('<p> '+ zeuzryueartt +'  </p>')
        }
    });
});

this code looks like :  rrr 

But is wrong for my case

Thanks

Where is res coming from? Is con.connect inside of a node handler? Regardless, you can only use res.end/send/json once per callback. You'll have to concatenate these into a single variable and send that back — Sterling Archer
– Sterling Archer, Commented Jun 13, 2018 at 16:14
I want this : rrr with a another etc — mataka
– mataka, Commented Jun 13, 2018 at 16:14
I have try but it doesn't work : like var htmlcode = ' ' + zeuzryueartt + ' ' — mataka
– mataka, Commented Jun 13, 2018 at 16:17

Sterling Archer · Accepted Answer · 2018-06-13 16:22:27Z

1

You are ending the response stream on the very first step. You need to only call end once you built entire response html.

con.connect(function(err) {
    // if (err) throw err;
    console.log("Connected!")
    con.query( 'SELECT * FROM `commentairesapplicationscommunautaire` ', function (error, results, fields) {
       const entireHTML = results.map(result => `<p>${result.contenu}</p>`).join('')
       res.end(entireHTML)
    });
});

edited Jun 13, 2018 at 16:22

Sterling Archer

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answered Jun 13, 2018 at 16:20

Yury Tarabanko

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