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Padding for Strings and Numbers
function(
s, // String / Number to pad
l, // target length
c, // character used for padding
u // undefined
){
c=new Array( // reusing c to carry padding
(l= // reusing l to to carry padding length
(l||0) // target length or 0
-(''+s) // minus s.toString()
.length // .length
+1 // plus 1
)>0 // if greater than 0
&&l // return l
||0 // else don't pad
).join( // join array
c!=u // if we supplied a character
?c // the character
:' ' // else space
);
return {
l:c+s, // left padding pad().l
r:s+c, // right padding pad().r
toString:function(){ // default
return c+s // .toString()
} // behavior
}
}
var pad = function(s,l,c,u){c=new Array((l=(l||0)-(''+s).length+1)>0&&l||0).join(c!=u?c:' ');return {l:c+s,r:s+c,toString:function(){return c+s}}}
console.log(
pad(15, 5, 0).l // left padding
+ pad('foo', 5) // js does .toString()
+ pad('bar', 5, '-').r // right padding with -
)
// 00015 foobar--
function(s,l,c,u){c=new Array((l=(l||0)-(''+s).length+1)>0&&l||0).join(c!=u?c:' ');return {l:c+s,r:s+c,toString:function(){return c+s}}}
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
Version 2, December 2004
Copyright (C) 2011 George Stagas https://github.com/stagas
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": "pad"
, "description": "Padding for Strings and Numbers"
, "keywords":
[ "pad"
, "padding"
]
}
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