Stack Exchange Vote Counter

Question

Write a program/function that returns the vote count of its own Stack Exchange answer at the time of its execution.

• Your program/function may access this page (codegolf.stackexchange.com/questions/82609) off the internet, however:
• Your program/function may not accept any user input and
• The use of URL shorteners is not allowed
• Your program/function may use only its own source as a reference point to its vote count (for example: no referencing strings of text in its contained answer but not in its own source)
• Your program/function must output its own vote count and only its own vote count (for example: no returning all vote counts on this page)

This is code-golf, shortest code wins.

Answer 1

jQuery + JavaScript, 85 bytes

$.get("//api.stackexchange.com/posts/82610?site=codegolf",d=>alert(d.items[0].score))

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

History

• -6 bytes because I was using the var data instead of d.
• -3 bytes thanks to @msh210
• -13 bytes thanks to @CᴏɴᴏʀO'Bʀɪᴇɴ
• -4 bytes thanks to @user6188402
• -5 bytes thanks to @Suever
• -4 bytes thanks to @RobW

Recommended usage

• Run snippet.
• Upvote.
• Run snippet, and be amazed as the number magically increases.

Bonus!!

Who doesn't like a bonus?

$.getJSON("//api.stackexchange.com/posts/" + prompt() + "?site=codegolf",d=>alert(d.items[0].score));

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

Enter the ID into the bonus and it will tell you the score.

Even more bonus!! Run this snippet to automatically run the program, upvote, and run again! (Requires rep > 15, auth). If it doesn't work, please tell me.

Answer 2

JavaScript ES6, 107 bytes

fetch`//api.stackexchange.com/posts/82672?site=codegolf`.then(r=>r.json()).then(b=>alert(b.items[0].score))

Real programmers don't use XMLHttpRequest. Real programmers use the Fetch API.

Answer 3

Bash, 80 79 75 69 bytes

w3m api.stackexchange.com/posts/82616?site=codegolf|tr ,: \\t|cut -f20

For scoring purposes, \t should be replaced with a TAB character.

This requires w3m, which should be available by default on most Linux distros.

Thanks to @NoOneIsHere for -2 bytes!

How it works

w3m is a command-line web browser. It queries the URL and (normally) displays its content in a readable format. Here, we just (ab)use it to avoid the call to zcat that curl would require, since SE serves the API response gzip-compressed.

tr ,: \^I replaces all commas and colons with tabs, which are cut's default field delimiter.

Finally, cut -f20 removes everything but the twentieth field, which is the vote count.

Answer 4

JavaScript ES6, 175 165 160 145 bytes

Saved lotsa bytes thanks to Optimizer and Dendrobium! They're all multiples of five!

Using plain ol' javascript. Who needs those newfangled libraries? Real programmers use XMLHttpRequest()

with(new XMLHttpRequest)send(open("get","//api.stackexchange.com/posts/82614?site=codegolf"),onload=_=>alert(response.match(/re..([0-9]+)/)[1]))

Test it out

alert=x=>o.innerHTML=x;

with(new XMLHttpRequest)send(open("get","//api.stackexchange.com/posts/82614?site=codegolf"),onload=_=>alert(response.match(/re..([0-9]+)/)[1]))

*{font-family:Consolas,monospace;}

<div id=o></div>

Answer 5

bash+jq, 69 bytes

w3m api.stackexchange.com/posts/82615?site=codegolf|jq .items[].score

I used curl and zcat before; w3m is inspired by Dennis’s (strikingly similar) answer. It turns out jq and tr/cut have the same byte cost!

Answer 6

Convex 0.5, 63 bytes

0000000: 22 d1 2e 46 91 32 e5 69 5d b2 66 81 12 a4 8d d1  "..F.2.i].f.....
0000010: 27 40 b5 32 47 68 97 2c b9 5c 22 05 16 49 10 31  '@.2Gh.,.\"..I.1
0000020: 44 9e f3 0a 6a 16 b0 68 91 93 35 0b 96 dc 91 0a  D...j..h..5.....
0000030: 3c 18 80 22 dc 67 27 3c 2f 32 36 39 3d 37 3e     <..".g'</269=7>

This retrieves the score from the search page instead of the API, specifically from the query https://codegolf.stackexchange.com/search?q=inquestion:82714. Fortunately, inquestion also works for answers.

Verification

$ echo $LANG
en_US
$ cat gen.convex
"codegolf.stackexchange.com:80/search?q=inquestion:82714"Ö`"Üg'</269=7>"
$ java -jar Convex/out/builds/convex-0.5/convex/convex.jar gen.conv > count.conv
$ cksum count.conv
2414634109 63 count.conv
$ java -jar Convex/out/builds/convex-0.5/convex/convex.jar count.conv
1

How it works

"..."Ü           e# Use the built-in string compression to push
                 e# "codegolf.stackexchange.com:80/search?q=inquestion:82714".
      g          e# Retrieve the HTML page at that URL.
       '</       e# Split at occurrences of '<'.
          269=   e# Select the chunk at index 269.
                 e# This pushes "strong>", followed by the vote count.
              7> e# Discard the leading seven characters.

Answer 7

05AB1E, 89 87 81 bytes

Thanks Python...

•1Ö8•D’£Ø ˆå§¾.‡¢ as g;#.¾¿„–(g.ˆåƒÛ('·Ç://ƒËŠˆ.‚‹º.ŒŒ/…é/ÿ/').‚Ø())’.er¡14èžz£þ

Uses the CP-1252 encoding.

Answer 8

MATLAB, 103 bytes

g=@getfield;g(g(webread('http://api.stackexchange.com/2.2/posts/82611?site=codegolf'),'items'),'score')

Answer 9

JavaScript (Node.js), 166 Bytes

-1 byte because @CᴏɴᴏʀO'Bʀɪᴇɴ taught me how to count ;)

-4 bytes thanks to @NoOneIsHere

require("http").get("http://api.stackexchange.com/posts/82620?site=codegolf",a=>a.on("data",d=>console.log(JSON.parse(require("zlib").gunzipSync(d)).items[0].score)))

This is somewhat embarrassing. Dang you SE for gzipping your API! /s

Any improvements are very welcome.

Answer 10

Julia, 128 107 bytes

using Requests
f()=split(readall(get("http://api.stackexchange.com/posts/82621?site=codegolf")),r":|,")[20]

This is a function that takes no input and returns the score of this post as a string. It requires the Requests package to be installed.

How it works:

• get makes a GET request to the SE API
• readall reads the raw bytes in the response and returns a string
• split splits the string at colons and commas
• The 20th element of the resulting array is the score of the post

Saved 21 bytes thanks to Dennis!

Answer 11

JavaScript (Node.js + Unirest), 123 bytes

require("unirest").get("http://api.stackexchange.com/posts/82683?site=codegolf").end(x=>console.log(x.body.items[0].score))

I like this library, because it automatically parses JSON.

Answer 12

PHP, 137 bytes

Pretty straight forward. The uncompressing takes a lot of bytes:

<?=json_decode(gzinflate(substr(file_get_contents('http://api.stackexchange.com/2.2/posts/82619?site=codegolf'),10)),1)[items][0][score];

---

Ungolfed

print
  json_decode(
    gzinflate(
      substr(
        file_get_contents('http://api.stackexchange.com/2.2/posts/82619?site=codegolf'),
        10
      )
    ),
    1
  )
  [items][0][score];

Answer 13

PHP, 121 bytes

Without api.

<?php preg_match('/t ">(.*)/',file_get_contents('http://codegolf.stackexchange.com/posts/82799/ajax-load'),$v);echo$v[1];

Gets the whole post and extracts the vote counts with regex. (don't parse HTML with regex!)

Ungolfed:

<?php
   preg_match('/t ">(.*)/',
              file_get_contents('http://codegolf.stackexchange.com/posts/82799/ajax-load'),
              $v);

   echo $v[1];

Answer 14

05AB1E, 45 bytes

•2íЕ’¸¸.‚‹º.ŒŒ/„¤/ÿ?€¼=ƒËŠˆ’žYì.w'ŒÂ¡θ',¡нþ

No TIO for the entire program, because the .w builtin to access the internet doesn't work on TIO.

Explanation:

We start by creating the url, and accessing it:

•2íЕ       # Push compressed integer 190437 (the id of this answer)
  ’¸¸.‚‹º.ŒŒ/„¤/ÿ?€¼=ƒËŠˆ’
            # Push dictionary string "api.stackexchange.com/posts/ÿ?site=codegolf",
            # where the `ÿ` is automatically filled with the 190437
    žY      # Push builtin "https://"
      ì     # And prepend it in front of the string
.w          # Go to this website, and get all its contents

Try it online (without the .w).

After that, we extract the score from the JSON:

'ŒÂ        '# Push dictionary string "score"
   ¡        # Split the website content on this
    θ       # Only leave the last item (of the two)
     ',¡   '# Split this string on ","
        н   # And this time leave the first item (i.e. `":10`)
         þ  # Only leave the digits of this string
            # (which is output implicitly as result)

Try it online.

An equal 10-bytes alternative for this second part could be:

„ŒÂ‚¡       # Push dictionary string "score after"
     #      # Split it on spaces: ["score","after"]
      ¡     # Split the website content on these
       Ås   # Only leave the middle element
         þ  # Only leave the digits of this string
            # (which is output implicitly as result)

Try it online.

See this 05AB1E tip of mine (sections How to use the dictionary? and How to compress large integers?) to understand why •2íЕ is 190437, ’¸¸.‚‹º.ŒŒ/„¤/ÿ?€¼=ƒËŠˆ’ is "api.stackexchange.com/posts/ÿ?site=codegolf", 'ŒÂ is "score", and „ŒÂ‚¡ is "score after".

PS/EDIT: I realize that by using the þ I assume I will never get a negative score. ;)