1663683 - for ... of String skips repeated characters

Status: RESOLVED INVALID

(Firefox :: Untriaged, defect)

Description

[steve]

Attachment: Screen Shot 2020-09-08 at 7.52.52 AM.png

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:80.0) Gecko/20100101 Firefox/80.0

Steps to reproduce:

1. Open the JavaScript console
2. Enter this code from MDN docs on for ... of when iterating strings:

const iterable = 'boo';

for (const value of iterable) {
  console.log(value);
}

Actual results:

The output is:

b
o

And an o is missing.

Try adding more o's, or try words like "feel" or "hoot" and you will see "fel" or "hot".

Expected results:

There should be outputs like:

"boo"

b
o
o

"feel"

f
e
e
l

Comment 1

[steve]

A friend just noticed the repeated output count badge on the far right of the console. Sorry for the noise!