Javascript Object returning undefined

Question

I am creating a variable where its value is determined by a particular method. This particular method should return an object with two properties. However, after the method returns the variable is undefined. I check the objects value right before it's returned and its fine. So there is something happening between the return and instantiate of the variable that causes it to be undefined. Here is a code snippet:

var results = findTarget(target, after, append); //undefined

function findTarget(target, after, append){
    var currenttemplate = $(target).attr('data-template');

    for(var i=0; i<after.length; i++){
        if(after[i] === currenttemplate)
            return {target : target, drop : "after"};
    }

    for(var j=0; j<append.length; j++){
        if(append[j] === currenttemplate){
            var obj = {target : target, drop : "append"};
            console.log(obj); //is fine here
            return obj; //this gets returned
        }
    }

    if(currenttemplate === threshold) {
        return "";
    }

    findTarget($(target).parent()[0], after, append); 
}

Oriol · Accepted Answer · 2014-03-10 21:43:27Z

3

You need to add a return at the end:

function findTarget(target, after, append){
    /* ... */
    return findTarget($(target).parent()[0], after, append); 
}

If not, you call recursively findTarget, and this recursive call returns the appropriate value, but the first call to findTarget doesn't return it.

answered Mar 10, 2014 at 21:43

Oriol

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