How to get rid of the first undefined

Question

Is there no easier way to get rid of the first element of undefined than this, by checking in the loops it isn't the first element?

    var text;

    for (d=0; d<json_nya_svar.length; d++){
        for (c=0; c<json_nya_svar[d].length; c++) {
            if (c==0 && d==0) text=json_nya_svar[d][c] + ";";
            else text += json_nya_svar[d][c] + ";";}
    text += "\r\n";
    }

Answer 1

Just give text an initial value:

var text = '';

Also, bear in mind that your loop variables are global, which can lead to various problems in the long run. Don't forget to add var before their declaration:

var text = '';
var json_nya_svar = [[1, 2, 3], [4, 5, 6]];

for (var d=0; d<json_nya_svar.length; d++){
    for (var c=0; c<json_nya_svar[d].length; c++) {
        text += json_nya_svar[d][c] + ";";
    }
    text += "\r\n";
}

console.log(text);