console.table appears to have padding issues when ￥ (FULLWIDTH YEN SIGN) is involved #29299

• Version: v10.16.2 (using nvm I can reproduce with v12.9.0 too)
• Platform: Linux stormo 5.2.9-arch1-1-ARCH #1 SMP PREEMPT Fri Aug 16 11:29:43 UTC 2019 x86_64 GNU/Linux
• Subsystem: console

I've been comparing differences between currency formattings for different locales, when I stumbled across a minor irregularity in the output of console.table.

Consider the following example code:

const items = [
  {foo: '2', bar: '3'},
  {foo: '¥2', bar: '3'},
  {foo: '2', bar: 'abcdefghijklmnopqrstuvwxyz'},
  {foo: '-￥12,345,678.90', bar: '￥-12,345,678.90'},
  {foo: '¥2', bar: '¥3'},
  {foo: '2', bar: '3'},
];

console.table(items);

The resulting console output on my machine appears like this:

From what I can gather so far:

• It seems that simply having ￥ in a string is sufficient to provoke the behavior given that it is the FULLWIDTH YEN SIGN (U+FFE5) and not the YEN SIGN (U+00A5).
• The behavior seems to be independent of table length - >400 items as well as a single item had the formatting oddity.
• It seems that having a longer string like abc…xyz in a different row doesn't change the outcome.

To me this hints that the length for the specific strings with ￥ in it could be calculated to be shorter than it actually is.

For completeness here's a screenshot of the original output I encountered:

After realizing that there are also rather short entries in my original output, I've created this additional test case:

const items = [
  {foo: '￥', bar: '¥'},
];

console.table(items);

const [{ foo, bar }] = items;

console.log({foo});
console.table(Array.from(foo + bar).map((s) => ({s, charCode: s.charCodeAt(0), length: s.length})));

The corresponding output looks like this:

It appears that the problem here lies with charCode 65509 rather than with 165.
So I'm concerned about the FULLWIDTH YEN SIGN at code point U+FFE5 rather than the YEN SIGN at code point U+00A5.

I've had a look at #27915 before and am under the impression that this is the right channel for this kind of issue. Please feel free to educate me otherwise ;)