karolk/LICENSE.txt

## README.md

      
    Raw
  

              README.md
            
          
    140byt.es

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


Click the  button above to fork this gist.
Modify all the files to according to the rules below.
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

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

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

See the 140byt.es site for a showcase of entries (built itself using 140-byte entries!), and 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, with help from Alex Kloss. It was inspired by work from Thomas Fuchs and Dustin Diaz.

  
## annotated.js
//http://docs.python.org/library/functions.html#range
function(
  a,  //STaRT
  o,  //SToP (never reached)
  e   //STeP
  )
{
  var r = [],   //results array
  m = Math.abs, //alias Math.abs,
  c;            //variable to cache initial start and stop relation
  o == c && e == c && (o = a, a = 0); //handle 1 param only, reuse c, which is still undef
  e = e || 1;   //step defaults to 1
  c = a < o;    //cache if start is greater or smaller than stop initially
  if(m(o - a) < m(o - a + e)) { //run once to check if stop is being approached
    for(;a != o && !(r.push(a), //until start reaches stop, keep adding values
        a += e, c != a < o);) {} //change start by a step and check that it didn't overrun stop
  }
  return r
}

## index.js
function(a,o,e){var r=[],m=Math.abs,c;o==c&&e==c&&(o=a,a=0);e=e||1;c=a<o;if(m(o-a)<m(o-a+e))for(;a!=o&&!(r.push(a),a+=e,c!=a<o););return r}

## LICENSE.txt
            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
                    Version 2, December 2004

 Copyright (C) 2011 Karol Kowalski <http://github.com/karolk>

 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.

## package.json
{
  "name": "python-compatible range in JS",

  "description": "just pythonic range",

  "keywords": [
    "range",
    "python",
    "js"
  ]
}

## test.html
<!DOCTYPE html>
<title>Foo</title>
<div>Expected value: <b>undefined</b></div>
<div>Actual value: <b id="ret"></b></div>
<script>
  // write a small example that shows off the API for your example
  // and tests it in one fell swoop.

var range = function(a,o,e){var r=[],m=Math.abs,c;o==c&&e==c&&(o=a,a=0);e=e||1;c=a<o;if(m(o-a)<m(o-a+e))for(;a!=o&&!(r.push(a),a+=e,c!=a<o););return r}

var tests = [
[[10], [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]],
[[1,11], [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]],
[[0,30,5], [0, 5, 10, 15, 20, 25]],
[[0,10,3], [0, 3, 6, 9]],
[[0,-10,-1], [0, -1, -2, -3, -4, -5, -6, -7, -8, -9]],
[[0], []],
[[1,0], []]
]

for (var i=0,l=tests.length;i<l;i++) {
document.getElementById( "ret" ).innerHTML+='returned: ['+range.apply(null,tests[i][0])+'] expected: ['+tests[i][1]+']<br>')
}
</script>
	//http://docs.python.org/library/functions.html#range
	function(
	a, //STaRT
	o, //SToP (never reached)
	e //STeP
	)
	{
	var r = [], //results array
	m = Math.abs, //alias Math.abs,
	c; //variable to cache initial start and stop relation
	o == c && e == c && (o = a, a = 0); //handle 1 param only, reuse c, which is still undef
	e = e \|\| 1; //step defaults to 1
	c = a < o; //cache if start is greater or smaller than stop initially
	if(m(o - a) < m(o - a + e)) { //run once to check if stop is being approached
	for(;a != o && !(r.push(a), //until start reaches stop, keep adding values
	a += e, c != a < o);) {} //change start by a step and check that it didn't overrun stop
	}
	return r
	}
	DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
	Version 2, December 2004

	Copyright (C) 2011 Karol Kowalski <http://github.com/karolk>

	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": "python-compatible range in JS",

	"description": "just pythonic range",

	"keywords": [
	"range",
	"python",
	"js"
	]
	}
	<!DOCTYPE html>
	<title>Foo</title>
	<div>Expected value: <b>undefined</b></div>
	<div>Actual value: <b id="ret"></b></div>
	<script>
	// write a small example that shows off the API for your example
	// and tests it in one fell swoop.

	var range = function(a,o,e){var r=[],m=Math.abs,c;o==c&&e==c&&(o=a,a=0);e=e\|\|1;c=a<o;if(m(o-a)<m(o-a+e))for(;a!=o&&!(r.push(a),a+=e,c!=a<o););return r}

	var tests = [
	[[10], [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]],
	[[1,11], [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]],
	[[0,30,5], [0, 5, 10, 15, 20, 25]],
	[[0,10,3], [0, 3, 6, 9]],
	[[0,-10,-1], [0, -1, -2, -3, -4, -5, -6, -7, -8, -9]],
	[[0], []],
	[[1,0], []]
	]

	for (var i=0,l=tests.length;i<l;i++) {
	document.getElementById( "ret" ).innerHTML+='returned: ['+range.apply(null,tests[i][0])+'] expected: ['+tests[i][1]+']<br>')
	}
	</script>