How can I remove the last comma in my for loop?

Question

function currentLine(katzDeliLine) {
    if (katzDeliLine.length > 0) {
        var textToPrint = \"The line is currently: \"

        for (var crrLine = 0; crrLine &         


        

Answer 1

Just check if the current index is the last one, if it is, don't add a comma:

for (var crrLine = 0; crrLine < katzDeliLine.length; crrLine++) {

        textToPrint = textToPrint + (crrLine + 1) + ". " + katzDeliLine[crrLine] + (crrLine != (katzDeliLine.length - 1) ? "," : "")

    }