gist: 137931


  
    
      max.js
    
    
      
      
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              function max() {
    if(arguments[0].length === 0) {return arguments[1] || NaN;}
    else {
        return max(arguments[0], Math.max(arguments[1] || 0, Math.max.apply(Math, arguments[0].pop())));
    }
};
 
var a = [[1,2,3],[4,5,6]];
 
console.log(a);
console.log(max(a));