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Make RGB Colors Lighter / Darker
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/* | |
* Make RGB-Colors lighter / darker | |
*/ | |
var color = function(c,n,i,d){for(i=3;i--;c[i]=d<0?0:d>255?255:d|0)d=c[i]+n;return c} | |
/** | |
* @param array RGB Colors | |
* @param number Amount | |
*/ | |
color( [225, 100, 10 ], -90 ); // returns [135,10,0] | |
color( [225, 100, 10 ], 70 ); // returns [255,170,80] |
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function(c,n,i,d){for(i=3;i--;c[i]=d<0?0:d>255?255:d|0)d=c[i]+n;return c} |
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{ | |
"name": "darker color", | |
"keywords": [ "color", "darker", "lighter" ] | |
} |
Wolf140b? You sir have no idea what you just unleashed.
Save 1 byte? I'm not sure if this works in all web browsers but I think so.
function(c,n,i,d){for(i in c)d=c[i]+n,c[i]=d<0?0:d>255?255:d|0;return c}
ES5 version, saves 1 byte:
function(c,n){return c.map(function(d){return(d+=n)<0?0:d>255?255:d|0})}
ES6 version, saves 32 byte:
(c,n)=>c.map(d=>(d+=n)<0?0:d>255?255:d|0)
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Nice one! We're all still waiting for a wolf140b...