return arr.map(function(name){ return name.split("").map(function(s,index){ return index===0?s.toUpperCase():s.toLowerCase(); }).reduce(function(x,y){return x+y;}).toString(); });
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NotFatCat
return arr.map(function(name){ return name.split("").map(function(s,index){ return index===0?s.toUpperCase():s.toLowerCase();
}).reduce(function(x,y){return x+y;}).toString(); });