subzey/LICENSE.txt

## README.md

      
    Raw
  

              README.md
            
          
    unit display

Shows values with units and multipliers, i.e., 760 Mibytes or 12 km.
If the unit is binary, «i» is appended to multiplier as suggested by IEC and IEEE.
Parameters


Number. A value, amount of something that need to be displayed for human;
Non-negative number. Amount of decimal digits. Default: 0;
String. Unit to be used. Default: "bytes";
Boolean. Is this unit binary (false) or decial (true). Default: binary (false).


## annotated.js
function(
	a, /* value */
	b, /* number of decimal digits */
	c, /* unit */
	d  /* isDecimal */
	){
	with(Math) /* Lookup properties in Math object */
		return
			/* Get the multipler: log(n,m) = log(n,e) / log(m,e) */
			/* I can hardly make it readable */
			/* Divide the original value into power of.. */
			(a / pow(
				/* ..base that becomes 1024 if unit is binary and 1000 if decimal */
				d = 1E3 + 24*!d,
				/* `a` is used already, so we can assign to it. It is the multiplier */
				/* log via log  use the d calculated just before */
				/* And then coerce to integer n^0 is like ~~n but has MUCH lower priority
				   so we can omit the parens */
				a = log(a)/log(d) ^0
				/* Then convert to fixed number using b as parameter */
				)).toFixed(b) +
			/* Just a typography: add the whitespace.*/
			' ' +
			/* Split string by regexp: use dash or nothing */
			/* ['','k','G','T'] Hope, T it is enough for now */
			/* then picking a letter depending on `a` */
			'kMGT'.charAt(a-1) +        // Thanks @maettig for getting rid of regexp here
			/* Append "i" if unit is binary and multiplier is more than 0 */
			/* In details:
			   We're already redefined d to be 1000 or 1024.
			   1000 & 8 makes 8
			   1024 & 8 makes 0
			   !a makes 0 or 1
			   So the possible values of d&8|!a are:
			   0, 1, 8, 9
			   then it is coerced to boolean
			*/
			(d & 8 | !a ? '' : 'i') +
			/* Append a unit or "bytes" if it is undefined */
			/* This function is primarily designed for bytes */
			(c || 'bytes')
		/* -- end of return -- */
	/* -- end of with -- */
}

## index.js
function(a,b,c,d){with(Math)return(a/pow(d=1E3+24*!d,a=log(a)/log(d)^0)).toFixed(b)+' '+'kMGT'.charAt(a-1)+(d&8|!a?'':'i')+(c||'bytes')}

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

 Copyright (C) 2011 subzey <subzey@immelman.ru>

 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": "unitDisplay",

  "description": "Displays value with unit and multipler",

  "keywords": [
	"units",
    "multipliers"
  ]
}

## test.html
<!DOCTYPE html>
<title>Foo</title>
<div>Expected value: <b>140 bytes,11.77 Mibytes,9 km</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 myFunction = function(a,b,c,d){with(Math)return(a/pow(d=1E3+24*!d,a=log(a)/log(d)^0)).toFixed(b)+' '+'kMGT'.charAt(a-1)+(d&8|!a?'':'i')+(c||'bytes')}

  document.getElementById( "ret" ).innerHTML = [myFunction(140), myFunction(12345678,2), myFunction(9001,null,'m',true)]
</script>
	function(
	a, /* value */
	b, /* number of decimal digits */
	c, /* unit */
	d /* isDecimal */
	){
	with(Math) /* Lookup properties in Math object */
	return
	/* Get the multipler: log(n,m) = log(n,e) / log(m,e) */
	/* I can hardly make it readable */
	/* Divide the original value into power of.. */
	(a / pow(
	/* ..base that becomes 1024 if unit is binary and 1000 if decimal */
	d = 1E3 + 24*!d,
	/* `a` is used already, so we can assign to it. It is the multiplier */
	/* log via log use the d calculated just before */
	/* And then coerce to integer n^0 is like ~~n but has MUCH lower priority
	so we can omit the parens */
	a = log(a)/log(d) ^0
	/* Then convert to fixed number using b as parameter */
	)).toFixed(b) +
	/* Just a typography: add the whitespace.*/
	' ' +
	/* Split string by regexp: use dash or nothing */
	/* ['','k','G','T'] Hope, T it is enough for now */
	/* then picking a letter depending on `a` */
	'kMGT'.charAt(a-1) + // Thanks @maettig for getting rid of regexp here
	/* Append "i" if unit is binary and multiplier is more than 0 */
	/* In details:
	We're already redefined d to be 1000 or 1024.
	1000 & 8 makes 8
	1024 & 8 makes 0
	!a makes 0 or 1
	So the possible values of d&8\|!a are:
	0, 1, 8, 9
	then it is coerced to boolean
	*/
	(d & 8 \| !a ? '' : 'i') +
	/* Append a unit or "bytes" if it is undefined */
	/* This function is primarily designed for bytes */
	(c \|\| 'bytes')
	/* -- end of return -- */
	/* -- end of with -- */
	}
	DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
	Version 2, December 2004

	Copyright (C) 2011 subzey <subzey@immelman.ru>

	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": "unitDisplay",

	"description": "Displays value with unit and multipler",

	"keywords": [
	"units",
	"multipliers"
	]
	}
	<!DOCTYPE html>
	<title>Foo</title>
	<div>Expected value: <b>140 bytes,11.77 Mibytes,9 km</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 myFunction = function(a,b,c,d){with(Math)return(a/pow(d=1E3+24*!d,a=log(a)/log(d)^0)).toFixed(b)+' '+'kMGT'.charAt(a-1)+(d&8\|!a?'':'i')+(c\|\|'bytes')}

	document.getElementById( "ret" ).innerHTML = [myFunction(140), myFunction(12345678,2), myFunction(9001,null,'m',true)]
	</script>