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Rev

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How happy is this emoticon?

In this challenge, submissions will be programs or function which, when given an emoticon such as :-), :(, or :D, will rate their happiness from 0 to 3.

An emoticon will be one of the following:

:(: 0
:|: 1
:): 2
:D: 3

Emoticons may also have noses (a - after the :).

Test cases:

:( -> 0
:-| -> 1
:D -> 3
:-) -> 2
:| -> 1

This is a code golf challenge, shortest answer per language wins.

Answer*

If this is an answer to a challenge…

…Be sure to follow the challenge specification. However, please refrain from exploiting obvious loopholes. Answers abusing any of the standard loopholes are considered invalid. If you think a specification is unclear or underspecified, comment on the question instead.
…Try to optimize your score. For instance, answers to code-golf challenges should attempt to be as short as possible. You can always include a readable version of the code in addition to the competitive one. Explanations of your answer make it more interesting to read and are very much encouraged.
…Include a short header which indicates the language(s) of your code and its score, as defined by the challenge.

More generally…

…Please make sure to answer the question and provide sufficient detail.
…Avoid asking for help, clarification or responding to other answers (use comments instead).

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Edit Summary*

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\$\begingroup\$ 8 bytes \$\endgroup\$

Bubbler
– Bubbler

2020年04月02日 01:47:05 +00:00
Commented Apr 2, 2020 at 1:47
\$\begingroup\$ @Bubbler Unfortunately, it says the link can’t be decode; mind repasting? \$\endgroup\$

AviFS
– AviFS

2020年04月02日 03:02:11 +00:00
Commented Apr 2, 2020 at 3:02
\$\begingroup\$ @AviF.S. Here it is. Weird though, because I can open it fine on my PC. \$\endgroup\$

Bubbler
– Bubbler

2020年04月02日 03:22:27 +00:00
Commented Apr 2, 2020 at 3:22
\$\begingroup\$ Very odd! Still doesn’t work for me but I’m on the mobile app (iPhone). Though I couldn’t find anything on Meta re: bugs with TIO and mobile... Suppose I’ll just hold my excitement ‘til I can check on my computer :) \$\endgroup\$

AviFS
– AviFS

2020年04月02日 03:33:38 +00:00
Commented Apr 2, 2020 at 3:33

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How to Edit

Correct minor typos or mistakes
Clarify meaning without changing it
Add related resources or links
Always respect the author’s intent
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How to Format

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>
MathJax equations \$\sin^2 \theta\$

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