Question

Why cant i access my array?

function map(array){
    for(i=0; i <=array.length; i++){
        var location=array[i].location;
        console.log("loc"+location);
        var user = array[i].from_user;
        console.log("user"+user);
        var date = array[i].created_at;
        var profile_img = array[i].profile_img;
        var text = array[i].text;
        var contentString = text;
        //geocode(user,date, profile_img, text, contentString,location);
    }
}

It gives me undefined for every element.I want to access it and pass the variables to the geocode function.
data structure:

array=[{user: a,user_id: b,date: c,profile_img: d,text: e,contentString: f,url:
      g,location:o},{user: a,user_id: b,date: c,profile_img: d,text: e,contentString: 
      f,url:g,location:o},{user: a,user_id: b,date: c,profile_img: d,text: 
      e,contentString: f,url: g,location:s}];

dont worry about the values..!

I forgot to mention when i first made the post(question). the location of the array is inserted in the previous function whereas the array didn’t include the attribute location from previous functions

Answer 1

When calling the function, use the object literal construct enclosed in an array literal, otherwise all values will be returned as undefined. This is how you should call your function:

map([{ // array literal enclosing an object literal

    location   : 1,
    from_user  : 2,
    created_at : 3,
    profile_img: 4,
    text       : 5

}]);

Moreover, in your loop, change:

for (i = 0; i <= array.length; i++ ) ...

…to

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

If you have a pre-defined array, name it and pass it to the function like this:

map(arrayObj)