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JavaScript JavaScript Loops, Arrays and Objects Tracking Data Using Objects Accessing All of the Properties in an Object

No question, just an observation on challenge 'Bummer' message.

When you do not use 'var' in the for(...) statement, for example, for(prop in shaghai){... You receive the follower 'Bummer'.

Bummer: It's a good idea to use the var keyword in a for in loop like this: for (var key in shanghai).

Yet, the previous video explaining 'for in' does not seem to demonstrate this as a requirement or as a best practice. Unless I'm missing something?

Just a lil' feedback.

var shanghai = {
  population: 14.35e6,
  longitude: '31.2000 N',
  latitude: '121.5000 E',
  country: 'CHN'
<!DOCTYPE html>
  <meta charset="utf-8">
  <title>JavaScript Objects</title>
<script src="script.js"></script>

1 Answer

Steven Parker
Steven Parker
228,094 Points

Apparently "var" is shown in the early parts of the video but not later on. You might want to report this as a bug.

See the Support page for instructions on reporting bugs.