cfml

trying to find if the key views exists, only do some work, what is wrong i am doing
```for (d in posts) {
            for (key in d) {
               
               structkeyexists(key,'views');
               dump(key);
            }
        }```


Without the output you're actually getting, it's hard to tell anything. Is posts empty? Is d empty? Both of those would result in no output.

Or are you getting an error? Is posts not a struct, an array, or a list? Same question for d. Is key not a struct?

<@U7ENG0HV2> we've been through this before. Don't ask "what am I doing wrong?", tell us what the code is doing, what your expectations are (you did that bit... kinda), and how the code's behaviour is differing from your expectations.

And a summary of what troubleshooting you have already done.

Why do you _never_ do this?
• <http://www.catb.org/~esr/faqs/smart-questions.html>
• <http://sscce.org/>

Questions for you (which are things you should have already done):
• what parameters does `structKeyExists` take?
• And what are you giving it?
• Does that seem right?
• What are you expecting the statement `structkeyexists(key,'views')`, by itself, to do?

if(structkeyexists(d,'views')) { this will work

I'm taking that to mean that `d` is a struct and `d` has a `views` key.

I'm just going to guess at your data structure here, because you still haven't told us... And that posts is an array of structs, like so:
```var posts = [
    {
        subject: "Post 1",
        content: "This is the first post",
        views: 14
    },
    {
        subject: "Post 2",
        content: "Post 1 is stupid. I disagree.",
        views: 6
    }
];```
Then, your code would be
```for (d in posts) {
    for (key in d) {
        structkeyexists(key, "views");
        dump(key);
    }
}```
And processing it would look like this:
```1. posts has 2 items, so it enters the loop.
2. d = the first struct (post 1)
3. d has keys, so it enters the second loop.
4. key = "subject"
5. structkeyexists("subject", "views") throws an error because "subject" is not a struct. It's a string.```