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19

logical or is not quite the thing needed in most cases, as you may want it to pick the right operand only if the left is undefined but not when it is defined and falsy.
– user2451227
Commented Aug 7, 2014 at 9:06
2

The CoffeeScript home page uses <script type="text/coffeescript">.
– Elias Zamaria
Commented Aug 9, 2016 at 22:09
30

While this answers the question it is almost entirely about coffeescript rather than javascript, and is more than half about describing coffeescript benefits unrelated to the OP. I'd suggest boiling it down to just what's relevant to the question, as wonderful as coffeescript's other benefits are.
– jinglesthula
Commented Oct 4, 2016 at 17:25
4

Am I going bananas? Surely the objection of user2451227 (currently with 4 votes) is invalid because the ternary's middle operand (i.e. right operand with the Elvis operator) would equally not be picked if the expression/left operand is defined and falsy. In both cases you then have to go x === undefined.
– mike rodent
Commented Jan 20, 2018 at 17:56
5

Please consider updating this to mention the optional chaining operator, ?.,. Browser support isn't at the point where I'd use it for general code, but it's heading in that direction. In addition, there's now the nullish coalescing operator (??), with a similar status.
– Makyen ♦
Commented Aug 2, 2020 at 16:13

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Correct minor typos or mistakes
Clarify meaning without changing it
Add related resources or links
Always respect the author’s intent
Don’t use edits to reply to the author

create code fences with backticks ` or tildes ~
```
like so
```
add language identifier to highlight code
```python
def function(foo):
print(foo)
```
put returns between paragraphs
for linebreak add 2 spaces at end
_italic_ or **bold**
indent code by 4 spaces
backtick escapes `like _so_`
quote by placing > at start of line
to make links (use https whenever possible)
<https://example.com>
[example](https://example.com)
<a href="https://example.com">example</a>

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