Question

i have an array i’m trying to loop through by array.length but it stops in the middle of the loop for no reason.

code :

    var id = ['88' , '89' , '90' , '91' , '92' , '93' , '94' , '95' , '96' , '97' , '98' ];
    var parent_id = ['1' , '1' , '88' , '1' , '88' , '91' , '93' , '93' , '92' , '90' , '97' ];

    function getAllLearningPaths(id){


    document.getElementById("catdiv").innerHTML += "THIS IS HE CURRENT CATEGORY ID : " + id     + "<br>"; 
    for(var i=0; i < id.length;i++)
    {
    document.getElementById("catdiv").innerHTML += "THIS IS HE CURRENT CATEGORY  PARENT    ID : " + parent_id[i] + "<br>"; 
    if(parent_id[i] == id && id[i] != id)
    {
      document.getElementById("catdiv").innerHTML += "I MADE IT!";
      getAllLearningPaths(parent_id[i]);


    }    
}

for(var i=0; i< Categories.length;i++)
{
    if(Categories[i] == id)
    {
        document.getElementById("l_ids_"+CategoriesValues[i]).checked = true;
       disablerow(document.getElementById("l_ids_"+CategoriesValues[i]), '1');


    }

}           

return;
}

categories is populated somewhere else in the code. it’s no problem.
the thing is that the first loop dosen’t pass the 2nd run.
this code outputs :

THIS IS HE CURRENT CATEGORY ID : 88
THIS IS HE CURRENT CATEGORY PARENT ID : 1
THIS IS HE CURRENT CATEGORY PARENT ID : 1

any idea?

Answer 1

This line looks wrong –

if(parent_id[i] == id && id[i] != id)

parent_id looks like an array of ints so the id variable would need to be an int to pass this test. You then refer to i as an array in the next part of the if statement – id[i] != id.