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8

plus one for great example of both null propagation and null coalescence!
– Jay Wick
Commented Feb 24, 2016 at 5:18
4

this works except that you won't know if you get null or undefined out of it
– Dave Cousineau
Commented Aug 12, 2018 at 4:12

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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
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<https://example.com>
[example](https://example.com)
<a href="https://example.com">example</a>

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