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@SeregPie In future you should refrain from editing code in answers. As this answer stands, when testing I did obtain null as the result for the final test rather than false. See When should I make edits to code?

Nick is tired
– Nick is tired

2017-12-13 11:36:13 +00:00
Commented Dec 13, 2017 at 11:36

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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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