ProcessingChain, findFirstValidItem, handler param

[smart--petea]

The functionProcessingChain.prototype.runChain has the snippet

ProcessingChain.prototype.runChain = function( req, res, finalFn, handler ) {
        ...
    if(handler) {
        var firstItem = self.findFirstValidItem(handler.name)
        firstItem.fn(req, res, next)
    } else {
        this.chain[0].fn(req, res, next )
    }
};

But, function ProcessingChain.prototype.findFirstValidItem

ProcessingChain.prototype.findFirstValidItem = function(name) {
    if(!name) return this.chain[0]  
    ...
}

check its argument name to be not undefined and if name is undefined return first element from chain (else branch of if condition statement from runChain function does the same.)

I think the if statement from runChain function can be replaced and the function get the form

ProcessingChain.prototype.runChain = function( req, res, finalFn, handler ) {
        ...

    self.findFirstValidItem(handler.name)(req, res, next);      
};

[smart--petea]

in findFirstValidItem function the statement

item.names && Array.isArray(item.names) && item.names.length > 0

is equivelent to

item.names && Array.isArray(item.names) && item.names.length