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simoneb/rle.js

Created September 13, 2015 23:30
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Javascript RLE
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rle.js
var str = 'AAABCCDEEE';
var expected = '3A1B2C1D3E';
var result = _.reduce(str+'\0',(a,c,i,s)=>{if(i&&s[i-1]!== c){a.r+=a.c+s[i-1];a.c=1;}else{a.c++;}return a;},{c:0,r:''}).r
result === expected;
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