tracker issue : CF-3713038

See: http://cfmlblog.adamcameron.me/2014/02/coldfusion-11-map-and-reduce.html

{quote}
This function doesn't work, I'm afraid (or I'm doing something wrong which I cannot identify). We're not off to a good start here. Here's some sample code:

rainbow    = "Whero,Karaka,Kowhai,Kakariki,Kikorangi,Tawatawa,Mawhero";

externalList = "";
reverseRainbow = listMap(rainbow,function(v,i,l){
    var newValue = "#i#:#v.reverse()#";
    externalList = externalList.append(newValue);
    return newValue;
});
writeDump([{rainbow=rainbow},{reverseRainbow=reverseRainbow},{externalList=externalList}]);

externalList = "";
reverseRainbow = rainbow.map(function(v,i,l){
    var newValue = "#i#:#v.reverse()#";
    externalList = externalList.append(newValue);
    return newValue;
});
writeDump([{rainbow=rainbow},{reverseRainbow=reverseRainbow},{externalList=externalList}]);

This contains the same example using both the listMap() function, and the .map() method. Here's the output:

array

1
	

struct

RAINBOW
	

Whero,Karaka,Kowhai,Kakariki,Kikorangi,Tawatawa,Mawhero

2
	

struct

REVERSERAINBOW
	

Whero,Karaka,Kowhai,Kakariki,Kikorangi,Tawatawa,Mawhero

3
	

struct

EXTERNALLIST
	

1:orehW,2:akaraK,3:iahwoK,4:ikirakaK,5:ignarokiK,6:awatawaT,7:orehwaM

array

1
	

struct

RAINBOW
	

Whero,Karaka,Kowhai,Kakariki,Kikorangi,Tawatawa,Mawhero

2
	

struct

REVERSERAINBOW
	

Whero,Karaka,Kowhai,Kakariki,Kikorangi,Tawatawa,Mawhero

3
	

struct

EXTERNALLIST
	

1:orehW,2:akaraK,3:iahwoK,4:ikirakaK,5:ignarokiK,6:awatawaT,7:orehwaM

I've added in the externalList to show you what reverseRainbow should look like. listMap() is supposed to work that the callback receives the element value, its index, and the whole list as arguments. Then it uses that information however is appropriate to create and return a new element. Here the new element is very contrived: the element index, and its value (reversed).

However the original list is just being returned by listMap() here. That's wrong.
{quote}

-- 
Adam

----------------------------- Additional Watson Details -----------------------------

Watson Bug ID:	3713038

External Customer Info:
External Company:  
External Customer Name: Adam Cameron.
External Customer Email:  
External Test Config: My Hardware and Environment details:

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