Skip to content

Instantly share code, notes, and snippets.

@Prinzhorn
Forked from 140bytes/LICENSE.txt
Created October 3, 2011 08:50
Show Gist options
  • Select an option

  • Save Prinzhorn/1258724 to your computer and use it in GitHub Desktop.

Select an option

Save Prinzhorn/1258724 to your computer and use it in GitHub Desktop.
American Soundex

140byt.es

A tweet-sized, fork-to-play, community-curated collection of JavaScript.

How to play

  1. Click the Fork button above to fork this gist.
  2. Modify all the files to according to the rules below.
  3. Save your entry and tweet it up!

Keep in mind that thanks to the awesome sensibilities of the GitHub team, gists are just repos. So feel free to clone yours and work locally for a more comfortable environment, and to allow commit messages.

Rules

All entries must exist in an index.js file, whose contents are

  1. an assignable, valid Javascript expression that
  2. contains no more than 140 bytes, and
  3. does not leak to the global scope.

All entries must also be licensed under the WTFPL or equally permissive license.

For more information

The 140byt.es site hasn't launched yet, but for now follow @140bytes on Twitter.

To learn about byte-saving hacks for your own code, or to contribute what you've learned, head to the wiki.

140byt.es is brought to you by Jed Schmidt. It was inspired by work from Thomas Fuchs and Dustin Diaz.

function(){
// make sure
// to annotate
// your code
// so everyone
// can learn
// from it!
// see jed's entries
// for examples.
}
function(){/* Your entry, a useful, unique, and valid JavaScript expression that packs as much functionality into 140 bytes as possible. */}
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
Version 2, December 2004
Copyright (C) 2011 YOUR_NAME_HERE <YOUR_URL_HERE>
Everyone is permitted to copy and distribute verbatim or modified
copies of this license document, and changing it is allowed as long
as the name is changed.
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. You just DO WHAT THE FUCK YOU WANT TO.
{
"name": "theNameOfYourLibWhichMustBeAValidCamelCasedJavaScriptIdentifier",
"description": "This should be a short description of your entry.",
"keywords": [
"five",
"descriptive",
"keywords",
"or",
"fewer"
]
}
<!DOCTYPE html>
<body>
<div>Expected value: <b>undefined</b></div>
<div>Actual value: <b id="ret"></b></div>
</body>
<script>
// write a small example that shows off the API for your example
// and tests it in one fell swoop.
var myFunction = function(){ /* the code here should be identical to the entry. */ }
var ret = myFunction()
document.getElementById( "ret" ).innerHTML = ret
</script>
@peterjaric
Copy link

I just tried your example ('Robert'), but I think I managed to remove 2 bytes (haha, not quite enough) by moving the regex object into the for loop:

var myFunction = function(a,b,c){for(c in b={aehiouwy:"",bfpv:1,cgjkqsxz:2,dt:3,l:4,mn:5,r:6,"]|(\d)\1+|[":"$1"})a=a[0]+a.substr(1).replace(RegExp("["+c+"]","g"),b[c])+0;return a.substr(0,4)};

@Prinzhorn
Copy link
Author

Good idea. Will commit.
But you removed one of the two backslashes in the regex ("\d" and "\1"). They are needed. I will add a test case for that.

Edit: I guess GitHub removed them, just as in my comment. Maybe we should use the appropriate Markdown for code in future.

@p01
Copy link

p01 commented Oct 3, 2011

164 bytes using a LUS ( Look Up String :p )

function(s,i,j,r){s=s.toUpperCase();for(r=s[i=0];j=s.charCodeAt(++i);)r+=+'1230120022455012623010202'[j-66]||'';return(r.replace(/(\d)\1+/g,'$1')+'000').slice(0,4)}

@Prinzhorn
Copy link
Author

Looks interesting.
Maybe you should fork my gist so we can golf on two courses, because both approaches seem fundamentally different. And don't forget the "annotated.js" file :-D

Edit: One more thing. The algorithm says "Two adjacent letters with the same number are coded as a single number.". I thought "555" should get "5" but obviously "55" is correct. So we both can strip the plus sign in our regex.

Edit2: LUS ftw!

@Prinzhorn
Copy link
Author

What was the idea behind "toUpperCase"? Remove it and subtract 98 instead and BAM 146 bytes.

@p01
Copy link

p01 commented Oct 3, 2011

I wanted to make my function case insensitive but, yes this is Spa^W140bytes and surely I can get away with that. Thanks

@Prinzhorn
Copy link
Author

136 bytes

function(s,i,j,r){for(r=s[i=0];j=s.charCodeAt(++i);)r+=s[i]!=s[i-1]&&+'1230120022455012623010202'[j-98]||'';return(r+'000').slice(0,4)}

@p01
Copy link

p01 commented Oct 3, 2011

:) That was fast! Nice move getting rid of the replace(...)

@peterjaric
Copy link

A little too late (things have moved on, I see), but for the record: I did not intend to remove the backslashes. It was probably a copy-and-paste error. Sorry about that!

@sylvinus
Copy link

sylvinus commented Oct 5, 2011

I got it down to 133 : https://gist.github.com/1263293

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment