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Won't work if the keys are collections. The trouble is that merge-with doesn't let you specify a starting value. These days, I think we'd expect that to be the value returned by the zero arity of the merging function.

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2019-01-25 23:24:39 +00:00
Commented Jan 25, 2019 at 23:24

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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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