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node_modules/wrappy/wrappy.js (2 issues)

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Code
1 
// Returns a wrapper function that returns a wrapped callback
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// The wrapper function should do some stuff, and return a
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// presumably different callback function.
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// This makes sure that own properties are retained, so that
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// decorations and such are not lost along the way.
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module.exports = wrappy
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function wrappy (fn, cb) {
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  if (fn && cb) return wrappy(fn)(cb)
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Coding Style Best Practice introduced by
Curly braces around statements make for more readable code and help prevent bugs when you add further statements.

Consider adding curly braces around all statements when they are executed conditionally. This is optional if there is only one statement, but leaving them out can lead to unexpected behaviour if another statement is added later.

Consider:

if (a > 0)
    b = 42;

If you or someone else later decides to put another statement in, only the first statement will be executed.

if (a > 0)
    console.log("a > 0");
    b = 42;

In this case the statement b = 42 will always be executed, while the logging statement will be executed conditionally.

if (a > 0) {
    console.log("a > 0");
    b = 42;
}

ensures that the proper code will be executed conditionally no matter how many statements are added or removed.

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  if (typeof fn !== 'function')

            


            
                                                                        
                            
            
                                    
            
            

                
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    throw new TypeError('need wrapper function')

            


                            

                    
                        
                    
                    
                    
                    
                                                                                                    
                        

                            
                            
0 ignored issues

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            Coding Style
            Best Practice
    
    
    
        introduced 
                            by 
            

        

        

            
        

        

            

                

                    
                
                
            


        

    

    

        
                        

                            
                                
                            
                        

                                        
Curly braces around statements make for more readable code and help prevent bugs when you add further statements.
                                            

                    
                                            

                            

                            

                                
                                    
                                
                            


                            
Consider adding curly braces around all statements when they are executed conditionally.
This is optional if there is only one statement, but leaving them out can lead to unexpected
behaviour if another statement is added later.


Consider:


if (a > 0)
    b = 42;





If you or someone else later decides to put another statement in, only the first
statement will be executed.


if (a > 0)
    console.log("a > 0");
    b = 42;





In this case the statement b = 42 will always be executed, while
the logging statement will be executed conditionally.


if (a > 0) {
    console.log("a > 0");
    b = 42;
}





ensures that the proper code will be executed conditionally no matter how
many statements are added or removed.


                        

                                                    

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  Object.keys(fn).forEach(function (k) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    wrapper[k] = fn[k]

            


            
                                                                                                            
                            
            
                                    
            
            

                
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  })

            


            
                                                                                                            
                            
            
                                    
            
            

                
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  return wrapper

            


            
                                                                                                            
                            
            
                                    
            
            

                
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  function wrapper() {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    var args = new Array(arguments.length)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    for (var i = 0; i < args.length; i++) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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      args[i] = arguments[i]

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    var ret = fn.apply(this, args)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    var cb = args[args.length-1]

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    if (typeof ret === 'function' && ret !== cb) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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      Object.keys(cb).forEach(function (k) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        ret[k] = cb[k]

            


            
                                                                                                            
                            
            
                                    
            
            

                
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      })

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    return ret

            


            
                                                                                                            
                            
            
                                    
            
            

                
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  }

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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}

            


            
                                                        
            
                                    
            
            

                
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