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Required fields*

Rev

But are you allowed to re-let variable myBook in Haskell? That's what the question is asking, i.e. can a local variable be updated.

Andreas
– Andreas

2018-02-22 18:44:20 +00:00
Commented Feb 22, 2018 at 18:44
@Andreas, no, in haskell it's definitely impossible. Here myBook and myBook' are functions definitions, not data structure as java class is.

Lex Ushakov
– Lex Ushakov

2018-02-22 19:06:26 +00:00
Commented Feb 22, 2018 at 19:06

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Correct minor typos or mistakes
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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
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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