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Start your free trialSilvia Ramos
Front End Web Development Techdegree Graduate 18,318 PointsFunction? VAR and LET in Arrays for Loops.
Hallo!
May sound like a silly question but JS is getting on my nerves.. I have literally spent 2h on this video... anyway, why does he uses a function? is it a good practise to include a function on 'for loops arrays'?
Also, I thought using 'LET' was a better practise than using 'VAR', and it was my first option, however when I checked it out, the console came up with an error.
Mine looks a bit different from the teacher's, but I have included this here in case someone can check it and provides some feedback :) as I don't want to assume is it's correct, just because ''it works''.
var playList = [
'I Did It My Way',
'Respect',
'Imagine',
'Born to Run',
'Louie Louie',
'Maybellene'
];
var htmlList = "<ol>";
for (var i = 0; i <= playList.length; i += 1 ) {
htmlList += `<li> ${playList[i]} </li>`;
} htmlList += '</ol>' ;
document.write(htmlList)
1 Answer
Steven Parker
231,122 PointsThis should work equally well with "var" or "let", but the one issue i see is that the loop runs one time too many:
for (let i = 0; i < playList.length; i += 1 ) {
Changing the comparison limits the loop to the existing array items.